From: Chukun Pan Date: Sat, 9 Mar 2024 15:16:25 +0000 (+0800) Subject: sunxi: backport h616 thermal sensor support X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=29515862ac704506e1c7d567703a9d6247c69715;p=openwrt%2Fstaging%2Fsvanheule.git sunxi: backport h616 thermal sensor support Backport H616 thermal sensor support from linux-next. Tested on the Orange Pi Zero 3 (H618 SoC). Signed-off-by: Chukun Pan --- diff --git a/target/linux/sunxi/patches-6.1/008-v6.7-arm64-dts-allwinner-h616-Add-SID-controller-node.patch b/target/linux/sunxi/patches-6.1/008-v6.7-arm64-dts-allwinner-h616-Add-SID-controller-node.patch new file mode 100644 index 0000000000..ce8add18ab --- /dev/null +++ b/target/linux/sunxi/patches-6.1/008-v6.7-arm64-dts-allwinner-h616-Add-SID-controller-node.patch @@ -0,0 +1,31 @@ +From 951992797378a2177946400438f4d23c9fceae5b Mon Sep 17 00:00:00 2001 +From: Martin Botka +Date: Tue, 12 Sep 2023 14:25:13 +0200 +Subject: [PATCH] arm64: dts: allwinner: h616: Add SID controller node + +Add node for the H616 SID controller + +Signed-off-by: Martin Botka +Acked-by: Jernej Skrabec +Link: https://lore.kernel.org/r/20230912-sid-h616-v3-2-ee18e1c5bbb5@somainline.org +Signed-off-by: Jernej Skrabec +--- + arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi | 7 +++++++ + 1 file changed, 7 insertions(+) + +--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi ++++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi +@@ -133,6 +133,13 @@ + #reset-cells = <1>; + }; + ++ sid: efuse@3006000 { ++ compatible = "allwinner,sun50i-h616-sid", "allwinner,sun50i-a64-sid"; ++ reg = <0x03006000 0x1000>; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ }; ++ + watchdog: watchdog@30090a0 { + compatible = "allwinner,sun50i-h616-wdt", + "allwinner,sun6i-a31-wdt"; diff --git a/target/linux/sunxi/patches-6.1/009-v6.9-soc-sunxi-sram-export-register-0-for-THS-on-H616.patch b/target/linux/sunxi/patches-6.1/009-v6.9-soc-sunxi-sram-export-register-0-for-THS-on-H616.patch new file mode 100644 index 0000000000..3453e2aa53 --- /dev/null +++ b/target/linux/sunxi/patches-6.1/009-v6.9-soc-sunxi-sram-export-register-0-for-THS-on-H616.patch @@ -0,0 +1,98 @@ +From 898d96c5464b69af44f6407c5de81ebc349d574b Mon Sep 17 00:00:00 2001 +From: Andre Przywara +Date: Mon, 19 Feb 2024 15:36:33 +0000 +Subject: [PATCH] soc: sunxi: sram: export register 0 for THS on H616 + +The Allwinner H616 SoC contains a mysterious bit at register offset 0x0 +in the SRAM control block. If bit 16 is set (the reset value), the +temperature readings of the THS are way off, leading to reports about +200C, at normal ambient temperatures. Clearing this bits brings the +reported values down to the expected values. +The BSP code clears this bit in firmware (U-Boot), and has an explicit +comment about this, but offers no real explanation. + +Experiments in U-Boot show that register 0x0 has no effect on the SRAM C +visibility: all tested bit settings still allow full read and write +access by the CPU to the whole of SRAM C. Only bit 24 of the register at +offset 0x4 makes all of SRAM C inaccessible by the CPU. So modelling +the THS switch functionality as an SRAM region would not reflect reality. + +Since we should not rely on firmware settings, allow other code (the THS +driver) to access this register, by exporting it through the already +existing regmap. This mimics what we already do for the LDO control and +the EMAC register. + +To avoid concurrent accesses to the same register at the same time, by +the SRAM switch code and the regmap code, use the same lock to protect +the access. The regmap subsystem allows to use an existing lock, so we +just need to hook in there. + +Signed-off-by: Andre Przywara +Reviewed-by: Jernej Skrabec +Signed-off-by: Daniel Lezcano +Link: https://lore.kernel.org/r/20240219153639.179814-2-andre.przywara@arm.com +--- + drivers/soc/sunxi/sunxi_sram.c | 22 ++++++++++++++++++++++ + 1 file changed, 22 insertions(+) + +--- a/drivers/soc/sunxi/sunxi_sram.c ++++ b/drivers/soc/sunxi/sunxi_sram.c +@@ -284,6 +284,7 @@ EXPORT_SYMBOL(sunxi_sram_release); + struct sunxi_sramc_variant { + int num_emac_clocks; + bool has_ldo_ctrl; ++ bool has_ths_offset; + }; + + static const struct sunxi_sramc_variant sun4i_a10_sramc_variant = { +@@ -305,8 +306,10 @@ static const struct sunxi_sramc_variant + + static const struct sunxi_sramc_variant sun50i_h616_sramc_variant = { + .num_emac_clocks = 2, ++ .has_ths_offset = true, + }; + ++#define SUNXI_SRAM_THS_OFFSET_REG 0x0 + #define SUNXI_SRAM_EMAC_CLOCK_REG 0x30 + #define SUNXI_SYS_LDO_CTRL_REG 0x150 + +@@ -315,6 +318,8 @@ static bool sunxi_sram_regmap_accessible + { + const struct sunxi_sramc_variant *variant = dev_get_drvdata(dev); + ++ if (reg == SUNXI_SRAM_THS_OFFSET_REG && variant->has_ths_offset) ++ return true; + if (reg >= SUNXI_SRAM_EMAC_CLOCK_REG && + reg < SUNXI_SRAM_EMAC_CLOCK_REG + variant->num_emac_clocks * 4) + return true; +@@ -324,6 +329,20 @@ static bool sunxi_sram_regmap_accessible + return false; + } + ++static void sunxi_sram_lock(void *_lock) ++{ ++ spinlock_t *lock = _lock; ++ ++ spin_lock(lock); ++} ++ ++static void sunxi_sram_unlock(void *_lock) ++{ ++ spinlock_t *lock = _lock; ++ ++ spin_unlock(lock); ++} ++ + static struct regmap_config sunxi_sram_regmap_config = { + .reg_bits = 32, + .val_bits = 32, +@@ -333,6 +352,9 @@ static struct regmap_config sunxi_sram_r + /* other devices have no business accessing other registers */ + .readable_reg = sunxi_sram_regmap_accessible_reg, + .writeable_reg = sunxi_sram_regmap_accessible_reg, ++ .lock = sunxi_sram_lock, ++ .unlock = sunxi_sram_unlock, ++ .lock_arg = &sram_lock, + }; + + static int __init sunxi_sram_probe(struct platform_device *pdev) diff --git a/target/linux/sunxi/patches-6.1/010-v6.8-thermal-drivers-sun8i-Add-D1-T113s-THS-controller-support.patch b/target/linux/sunxi/patches-6.1/010-v6.8-thermal-drivers-sun8i-Add-D1-T113s-THS-controller-support.patch new file mode 100644 index 0000000000..8b19989118 --- /dev/null +++ b/target/linux/sunxi/patches-6.1/010-v6.8-thermal-drivers-sun8i-Add-D1-T113s-THS-controller-support.patch @@ -0,0 +1,47 @@ +From ebbf19e36d021f253425344b4d4b987f3b7d9be5 Mon Sep 17 00:00:00 2001 +From: Maxim Kiselev +Date: Mon, 18 Dec 2023 00:06:23 +0300 +Subject: [PATCH] thermal/drivers/sun8i: Add D1/T113s THS controller support + +This patch adds a thermal sensor controller support for the D1/T113s, +which is similar to the one on H6, but with only one sensor and +different scale and offset values. + +Signed-off-by: Maxim Kiselev +Acked-by: Jernej Skrabec +Reviewed-by: Andre Przywara +Signed-off-by: Daniel Lezcano +Link: https://lore.kernel.org/r/20231217210629.131486-3-bigunclemax@gmail.com +--- + drivers/thermal/sun8i_thermal.c | 13 +++++++++++++ + 1 file changed, 13 insertions(+) + +--- a/drivers/thermal/sun8i_thermal.c ++++ b/drivers/thermal/sun8i_thermal.c +@@ -610,6 +610,18 @@ static const struct ths_thermal_chip sun + .calc_temp = sun8i_ths_calc_temp, + }; + ++static const struct ths_thermal_chip sun20i_d1_ths = { ++ .sensor_num = 1, ++ .has_bus_clk_reset = true, ++ .offset = 188552, ++ .scale = 673, ++ .temp_data_base = SUN50I_H6_THS_TEMP_DATA, ++ .calibrate = sun50i_h6_ths_calibrate, ++ .init = sun50i_h6_thermal_init, ++ .irq_ack = sun50i_h6_irq_ack, ++ .calc_temp = sun8i_ths_calc_temp, ++}; ++ + static const struct of_device_id of_ths_match[] = { + { .compatible = "allwinner,sun8i-a83t-ths", .data = &sun8i_a83t_ths }, + { .compatible = "allwinner,sun8i-h3-ths", .data = &sun8i_h3_ths }, +@@ -618,6 +630,7 @@ static const struct of_device_id of_ths_ + { .compatible = "allwinner,sun50i-a100-ths", .data = &sun50i_a100_ths }, + { .compatible = "allwinner,sun50i-h5-ths", .data = &sun50i_h5_ths }, + { .compatible = "allwinner,sun50i-h6-ths", .data = &sun50i_h6_ths }, ++ { .compatible = "allwinner,sun20i-d1-ths", .data = &sun20i_d1_ths }, + { /* sentinel */ }, + }; + MODULE_DEVICE_TABLE(of, of_ths_match); diff --git a/target/linux/sunxi/patches-6.1/011-v6.9-thermal-drivers-sun8i-Explain-unknown-H6-register-value.patch b/target/linux/sunxi/patches-6.1/011-v6.9-thermal-drivers-sun8i-Explain-unknown-H6-register-value.patch new file mode 100644 index 0000000000..b8138a3870 --- /dev/null +++ b/target/linux/sunxi/patches-6.1/011-v6.9-thermal-drivers-sun8i-Explain-unknown-H6-register-value.patch @@ -0,0 +1,79 @@ +From 14f118aa50fe7c7c7330f56d007ecacca487cea8 Mon Sep 17 00:00:00 2001 +From: Andre Przywara +Date: Mon, 19 Feb 2024 15:36:35 +0000 +Subject: [PATCH] thermal/drivers/sun8i: Explain unknown H6 register value + +So far we were ORing in some "unknown" value into the THS control +register on the Allwinner H6. This part of the register is not explained +in the H6 manual, but the H616 manual details those bits, and on closer +inspection the THS IP blocks in both SoCs seem very close: +- The BSP code for both SoCs writes the same values into THS_CTRL. +- The reset values of at least the first three registers are the same. + +Replace the "unknown" value with its proper meaning: "acquire time", +most probably the sample part of the sample & hold circuit of the ADC, +according to its explanation in the H616 manual. + +No functional change, just a macro rename and adjustment. + +Signed-off-by: Andre Przywara +Reviewed-by: Jernej Skrabec +Acked-by: Vasily Khoruzhick +Signed-off-by: Daniel Lezcano +Link: https://lore.kernel.org/r/20240219153639.179814-4-andre.przywara@arm.com +--- + drivers/thermal/sun8i_thermal.c | 29 ++++++++++++++++------------- + 1 file changed, 16 insertions(+), 13 deletions(-) + +--- a/drivers/thermal/sun8i_thermal.c ++++ b/drivers/thermal/sun8i_thermal.c +@@ -50,7 +50,8 @@ + #define SUN8I_THS_CTRL2_T_ACQ1(x) ((GENMASK(15, 0) & (x)) << 16) + #define SUN8I_THS_DATA_IRQ_STS(x) BIT(x + 8) + +-#define SUN50I_THS_CTRL0_T_ACQ(x) ((GENMASK(15, 0) & (x)) << 16) ++#define SUN50I_THS_CTRL0_T_ACQ(x) (GENMASK(15, 0) & ((x) - 1)) ++#define SUN50I_THS_CTRL0_T_SAMPLE_PER(x) ((GENMASK(15, 0) & ((x) - 1)) << 16) + #define SUN50I_THS_FILTER_EN BIT(2) + #define SUN50I_THS_FILTER_TYPE(x) (GENMASK(1, 0) & (x)) + #define SUN50I_H6_THS_PC_TEMP_PERIOD(x) ((GENMASK(19, 0) & (x)) << 12) +@@ -410,25 +411,27 @@ static int sun8i_h3_thermal_init(struct + return 0; + } + +-/* +- * Without this undocumented value, the returned temperatures would +- * be higher than real ones by about 20C. +- */ +-#define SUN50I_H6_CTRL0_UNK 0x0000002f +- + static int sun50i_h6_thermal_init(struct ths_device *tmdev) + { + int val; + + /* +- * T_acq = 20us +- * clkin = 24MHz +- * +- * x = T_acq * clkin - 1 +- * = 479 ++ * The manual recommends an overall sample frequency of 50 KHz (20us, ++ * 480 cycles at 24 MHz), which provides plenty of time for both the ++ * acquisition time (>24 cycles) and the actual conversion time ++ * (>14 cycles). ++ * The lower half of the CTRL register holds the "acquire time", in ++ * clock cycles, which the manual recommends to be 2us: ++ * 24MHz * 2us = 48 cycles. ++ * The high half of THS_CTRL encodes the sample frequency, in clock ++ * cycles: 24MHz * 20us = 480 cycles. ++ * This is explained in the H616 manual, but apparently wrongly ++ * described in the H6 manual, although the BSP code does the same ++ * for both SoCs. + */ + regmap_write(tmdev->regmap, SUN50I_THS_CTRL0, +- SUN50I_H6_CTRL0_UNK | SUN50I_THS_CTRL0_T_ACQ(479)); ++ SUN50I_THS_CTRL0_T_ACQ(48) | ++ SUN50I_THS_CTRL0_T_SAMPLE_PER(480)); + /* average over 4 samples */ + regmap_write(tmdev->regmap, SUN50I_H6_THS_MFC, + SUN50I_THS_FILTER_EN | diff --git a/target/linux/sunxi/patches-6.1/012-v6.9-thermal-drivers-sun8i-Extend-H6-calibration-to-support-4.patch b/target/linux/sunxi/patches-6.1/012-v6.9-thermal-drivers-sun8i-Extend-H6-calibration-to-support-4.patch new file mode 100644 index 0000000000..3d01a507fa --- /dev/null +++ b/target/linux/sunxi/patches-6.1/012-v6.9-thermal-drivers-sun8i-Extend-H6-calibration-to-support-4.patch @@ -0,0 +1,74 @@ +From 6c04a419a4c5fb18edefc44dd676fb95c7f6c55d Mon Sep 17 00:00:00 2001 +From: Maksim Kiselev +Date: Mon, 19 Feb 2024 15:36:36 +0000 +Subject: [PATCH] thermal/drivers/sun8i: Extend H6 calibration to support 4 + sensors + +The H616 SoC resembles the H6 thermal sensor controller, with a few +changes like four sensors. + +Extend sun50i_h6_ths_calibrate() function to support calibration of +these sensors. + +Co-developed-by: Martin Botka +Signed-off-by: Martin Botka +Signed-off-by: Maksim Kiselev +Reviewed-by: Andre Przywara +Signed-off-by: Andre Przywara +Reviewed-by: Jernej Skrabec +Acked-by: Vasily Khoruzhick +Signed-off-by: Daniel Lezcano +Link: https://lore.kernel.org/r/20240219153639.179814-5-andre.przywara@arm.com +--- + drivers/thermal/sun8i_thermal.c | 28 ++++++++++++++++++++-------- + 1 file changed, 20 insertions(+), 8 deletions(-) + +--- a/drivers/thermal/sun8i_thermal.c ++++ b/drivers/thermal/sun8i_thermal.c +@@ -224,16 +224,21 @@ static int sun50i_h6_ths_calibrate(struc + struct device *dev = tmdev->dev; + int i, ft_temp; + +- if (!caldata[0] || callen < 2 + 2 * tmdev->chip->sensor_num) ++ if (!caldata[0]) + return -EINVAL; + + /* + * efuse layout: + * +- * 0 11 16 32 +- * +-------+-------+-------+ +- * |temp| |sensor0|sensor1| +- * +-------+-------+-------+ ++ * 0 11 16 27 32 43 48 57 ++ * +----------+-----------+-----------+-----------+ ++ * | temp | |sensor0| |sensor1| |sensor2| | ++ * +----------+-----------+-----------+-----------+ ++ * ^ ^ ^ ++ * | | | ++ * | | sensor3[11:8] ++ * | sensor3[7:4] ++ * sensor3[3:0] + * + * The calibration data on the H6 is the ambient temperature and + * sensor values that are filled during the factory test stage. +@@ -246,9 +251,16 @@ static int sun50i_h6_ths_calibrate(struc + ft_temp = (caldata[0] & FT_TEMP_MASK) * 100; + + for (i = 0; i < tmdev->chip->sensor_num; i++) { +- int sensor_reg = caldata[i + 1] & TEMP_CALIB_MASK; +- int cdata, offset; +- int sensor_temp = tmdev->chip->calc_temp(tmdev, i, sensor_reg); ++ int sensor_reg, sensor_temp, cdata, offset; ++ ++ if (i == 3) ++ sensor_reg = (caldata[1] >> 12) ++ | ((caldata[2] >> 12) << 4) ++ | ((caldata[3] >> 12) << 8); ++ else ++ sensor_reg = caldata[i + 1] & TEMP_CALIB_MASK; ++ ++ sensor_temp = tmdev->chip->calc_temp(tmdev, i, sensor_reg); + + /* + * Calibration data is CALIBRATE_DEFAULT - (calculated diff --git a/target/linux/sunxi/patches-6.1/013-v6.9-thermal-drivers-sun8i-Add-SRAM-register-access-code.patch b/target/linux/sunxi/patches-6.1/013-v6.9-thermal-drivers-sun8i-Add-SRAM-register-access-code.patch new file mode 100644 index 0000000000..6db1e32cfb --- /dev/null +++ b/target/linux/sunxi/patches-6.1/013-v6.9-thermal-drivers-sun8i-Add-SRAM-register-access-code.patch @@ -0,0 +1,126 @@ +From f8b54d1120b81ed57bed96cc8e814ba08886d1e5 Mon Sep 17 00:00:00 2001 +From: Andre Przywara +Date: Mon, 19 Feb 2024 15:36:37 +0000 +Subject: [PATCH] thermal/drivers/sun8i: Add SRAM register access code + +The Allwinner H616 SoC needs to clear a bit in one register in the SRAM +controller, to report reasonable temperature values. On reset, bit 16 in +register 0x3000000 is set, which leads to the driver reporting +temperatures around 200C. Clearing this bit brings the values down to the +expected range. The BSP code does a one-time write in U-Boot, with a +comment just mentioning the effect on the THS, but offering no further +explanation. + +To not rely on firmware to set things up for us, add code that queries +the SRAM controller device via a DT phandle link, then clear just this +single bit. + +Signed-off-by: Andre Przywara +Acked-by: Vasily Khoruzhick +Signed-off-by: Daniel Lezcano +Link: https://lore.kernel.org/r/20240219153639.179814-6-andre.przywara@arm.com +--- + drivers/thermal/sun8i_thermal.c | 51 +++++++++++++++++++++++++++++++++ + 1 file changed, 51 insertions(+) + +--- a/drivers/thermal/sun8i_thermal.c ++++ b/drivers/thermal/sun8i_thermal.c +@@ -15,6 +15,7 @@ + #include + #include + #include ++#include + #include + #include + #include +@@ -68,6 +69,7 @@ struct tsensor { + struct ths_thermal_chip { + bool has_mod_clk; + bool has_bus_clk_reset; ++ bool needs_sram; + int sensor_num; + int offset; + int scale; +@@ -85,12 +87,16 @@ struct ths_device { + const struct ths_thermal_chip *chip; + struct device *dev; + struct regmap *regmap; ++ struct regmap_field *sram_regmap_field; + struct reset_control *reset; + struct clk *bus_clk; + struct clk *mod_clk; + struct tsensor sensor[MAX_SENSOR_NUM]; + }; + ++/* The H616 needs to have a bit 16 in the SRAM control register cleared. */ ++static const struct reg_field sun8i_ths_sram_reg_field = REG_FIELD(0x0, 16, 16); ++ + /* Temp Unit: millidegree Celsius */ + static int sun8i_ths_calc_temp(struct ths_device *tmdev, + int id, int reg) +@@ -337,6 +343,34 @@ static void sun8i_ths_reset_control_asse + reset_control_assert(data); + } + ++static struct regmap *sun8i_ths_get_sram_regmap(struct device_node *node) ++{ ++ struct device_node *sram_node; ++ struct platform_device *sram_pdev; ++ struct regmap *regmap = NULL; ++ ++ sram_node = of_parse_phandle(node, "allwinner,sram", 0); ++ if (!sram_node) ++ return ERR_PTR(-ENODEV); ++ ++ sram_pdev = of_find_device_by_node(sram_node); ++ if (!sram_pdev) { ++ /* platform device might not be probed yet */ ++ regmap = ERR_PTR(-EPROBE_DEFER); ++ goto out_put_node; ++ } ++ ++ /* If no regmap is found then the other device driver is at fault */ ++ regmap = dev_get_regmap(&sram_pdev->dev, NULL); ++ if (!regmap) ++ regmap = ERR_PTR(-EINVAL); ++ ++ platform_device_put(sram_pdev); ++out_put_node: ++ of_node_put(sram_node); ++ return regmap; ++} ++ + static int sun8i_ths_resource_init(struct ths_device *tmdev) + { + struct device *dev = tmdev->dev; +@@ -381,6 +415,19 @@ static int sun8i_ths_resource_init(struc + if (ret) + return ret; + ++ if (tmdev->chip->needs_sram) { ++ struct regmap *regmap; ++ ++ regmap = sun8i_ths_get_sram_regmap(dev->of_node); ++ if (IS_ERR(regmap)) ++ return PTR_ERR(regmap); ++ tmdev->sram_regmap_field = devm_regmap_field_alloc(dev, ++ regmap, ++ sun8i_ths_sram_reg_field); ++ if (IS_ERR(tmdev->sram_regmap_field)) ++ return PTR_ERR(tmdev->sram_regmap_field); ++ } ++ + ret = sun8i_ths_calibrate(tmdev); + if (ret) + return ret; +@@ -427,6 +474,10 @@ static int sun50i_h6_thermal_init(struct + { + int val; + ++ /* The H616 needs to have a bit in the SRAM control register cleared. */ ++ if (tmdev->sram_regmap_field) ++ regmap_field_write(tmdev->sram_regmap_field, 0); ++ + /* + * The manual recommends an overall sample frequency of 50 KHz (20us, + * 480 cycles at 24 MHz), which provides plenty of time for both the diff --git a/target/linux/sunxi/patches-6.1/014-v6.9-thermal-drivers-sun8i-Add-support-for-H616-THS-controller.patch b/target/linux/sunxi/patches-6.1/014-v6.9-thermal-drivers-sun8i-Add-support-for-H616-THS-controller.patch new file mode 100644 index 0000000000..e743d344c6 --- /dev/null +++ b/target/linux/sunxi/patches-6.1/014-v6.9-thermal-drivers-sun8i-Add-support-for-H616-THS-controller.patch @@ -0,0 +1,50 @@ +From e7dbfa19572a1440a2e67ef70f94ff204849a0a8 Mon Sep 17 00:00:00 2001 +From: Martin Botka +Date: Mon, 19 Feb 2024 15:36:38 +0000 +Subject: [PATCH] thermal/drivers/sun8i: Add support for H616 THS controller + +Add support for the thermal sensor found in H616 SoCs, is the same as +the H6 thermal sensor controller, but with four sensors. +Also the registers readings are wrong, unless a bit in the first SYS_CFG +register cleared, so set exercise the SRAM regmap to take care of that. + +Signed-off-by: Martin Botka +Signed-off-by: Andre Przywara +Acked-by: Vasily Khoruzhick +Signed-off-by: Daniel Lezcano +Link: https://lore.kernel.org/r/20240219153639.179814-7-andre.przywara@arm.com +--- + drivers/thermal/sun8i_thermal.c | 15 +++++++++++++++ + 1 file changed, 15 insertions(+) + +--- a/drivers/thermal/sun8i_thermal.c ++++ b/drivers/thermal/sun8i_thermal.c +@@ -688,6 +688,20 @@ static const struct ths_thermal_chip sun + .calc_temp = sun8i_ths_calc_temp, + }; + ++static const struct ths_thermal_chip sun50i_h616_ths = { ++ .sensor_num = 4, ++ .has_bus_clk_reset = true, ++ .needs_sram = true, ++ .ft_deviation = 8000, ++ .offset = 263655, ++ .scale = 810, ++ .temp_data_base = SUN50I_H6_THS_TEMP_DATA, ++ .calibrate = sun50i_h6_ths_calibrate, ++ .init = sun50i_h6_thermal_init, ++ .irq_ack = sun50i_h6_irq_ack, ++ .calc_temp = sun8i_ths_calc_temp, ++}; ++ + static const struct of_device_id of_ths_match[] = { + { .compatible = "allwinner,sun8i-a83t-ths", .data = &sun8i_a83t_ths }, + { .compatible = "allwinner,sun8i-h3-ths", .data = &sun8i_h3_ths }, +@@ -697,6 +711,7 @@ static const struct of_device_id of_ths_ + { .compatible = "allwinner,sun50i-h5-ths", .data = &sun50i_h5_ths }, + { .compatible = "allwinner,sun50i-h6-ths", .data = &sun50i_h6_ths }, + { .compatible = "allwinner,sun20i-d1-ths", .data = &sun20i_d1_ths }, ++ { .compatible = "allwinner,sun50i-h616-ths", .data = &sun50i_h616_ths }, + { /* sentinel */ }, + }; + MODULE_DEVICE_TABLE(of, of_ths_match); diff --git a/target/linux/sunxi/patches-6.1/015-v6.9-thermal-drivers-sun8i-Dont-fail-probe-due-to-zone-registra.patch b/target/linux/sunxi/patches-6.1/015-v6.9-thermal-drivers-sun8i-Dont-fail-probe-due-to-zone-registra.patch new file mode 100644 index 0000000000..384bf55084 --- /dev/null +++ b/target/linux/sunxi/patches-6.1/015-v6.9-thermal-drivers-sun8i-Dont-fail-probe-due-to-zone-registra.patch @@ -0,0 +1,68 @@ +From 9ac53d5532cc4bb595bbee86ccba2172ccc336c3 Mon Sep 17 00:00:00 2001 +From: Mark Brown +Date: Tue, 23 Jan 2024 23:33:07 +0000 +Subject: [PATCH] thermal/drivers/sun8i: Don't fail probe due to zone + registration failure + +Currently the sun8i thermal driver will fail to probe if any of the +thermal zones it is registering fails to register with the thermal core. +Since we currently do not define any trip points for the GPU thermal +zones on at least A64 or H5 this means that we have no thermal support +on these platforms: + +[ 1.698703] thermal_sys: Failed to find 'trips' node +[ 1.698707] thermal_sys: Failed to find trip points for thermal-sensor id=1 + +even though the main CPU thermal zone on both SoCs is fully configured. +This does not seem ideal, while we may not be able to use all the zones +it seems better to have those zones which are usable be operational. +Instead just carry on registering zones if we get any non-deferral +error, allowing use of those zones which are usable. + +This means that we also need to update the interrupt handler to not +attempt to notify the core for events on zones which we have not +registered, I didn't see an ability to mask individual interrupts and +I would expect that interrupts would still be indicated in the ISR even +if they were masked. + +Reviewed-by: Vasily Khoruzhick +Acked-by: Jernej Skrabec +Signed-off-by: Mark Brown +Signed-off-by: Daniel Lezcano +Link: https://lore.kernel.org/r/20240123-thermal-sun8i-registration-v3-1-3e5771b1bbdd@kernel.org +--- + drivers/thermal/sun8i_thermal.c | 16 ++++++++++++++-- + 1 file changed, 14 insertions(+), 2 deletions(-) + +--- a/drivers/thermal/sun8i_thermal.c ++++ b/drivers/thermal/sun8i_thermal.c +@@ -197,6 +197,9 @@ static irqreturn_t sun8i_irq_thread(int + int i; + + for_each_set_bit(i, &irq_bitmap, tmdev->chip->sensor_num) { ++ /* We allow some zones to not register. */ ++ if (IS_ERR(tmdev->sensor[i].tzd)) ++ continue; + thermal_zone_device_update(tmdev->sensor[i].tzd, + THERMAL_EVENT_UNSPECIFIED); + } +@@ -531,8 +534,17 @@ static int sun8i_ths_register(struct ths + i, + &tmdev->sensor[i], + &ths_ops); +- if (IS_ERR(tmdev->sensor[i].tzd)) +- return PTR_ERR(tmdev->sensor[i].tzd); ++ ++ /* ++ * If an individual zone fails to register for reasons ++ * other than probe deferral (eg, a bad DT) then carry ++ * on, other zones might register successfully. ++ */ ++ if (IS_ERR(tmdev->sensor[i].tzd)) { ++ if (PTR_ERR(tmdev->sensor[i].tzd) == -EPROBE_DEFER) ++ return PTR_ERR(tmdev->sensor[i].tzd); ++ continue; ++ } + + if (devm_thermal_add_hwmon_sysfs(tmdev->sensor[i].tzd)) + dev_warn(tmdev->dev, diff --git a/target/linux/sunxi/patches-6.1/016-v6.9-arm64-dts-allwinner-h616-Add-thermal-sensor-and-zones.patch b/target/linux/sunxi/patches-6.1/016-v6.9-arm64-dts-allwinner-h616-Add-thermal-sensor-and-zones.patch new file mode 100644 index 0000000000..cd6542bf14 --- /dev/null +++ b/target/linux/sunxi/patches-6.1/016-v6.9-arm64-dts-allwinner-h616-Add-thermal-sensor-and-zones.patch @@ -0,0 +1,138 @@ +From f4318af40544b8e7ff5a6b667ede60e6cf808262 Mon Sep 17 00:00:00 2001 +From: Martin Botka +Date: Mon, 19 Feb 2024 15:36:39 +0000 +Subject: [PATCH] arm64: dts: allwinner: h616: Add thermal sensor and zones + +There are four thermal sensors: +- CPU +- GPU +- VE +- DRAM + +Add the thermal sensor configuration and the thermal zones. + +Signed-off-by: Martin Botka +Signed-off-by: Andre Przywara +Reviewed-by: Jernej Skrabec +Link: https://lore.kernel.org/r/20240219153639.179814-8-andre.przywara@arm.com +Signed-off-by: Jernej Skrabec +--- + .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 88 +++++++++++++++++++ + 1 file changed, 88 insertions(+) + +--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi ++++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi +@@ -9,6 +9,7 @@ + #include + #include + #include ++#include + + / { + interrupt-parent = <&gic>; +@@ -138,6 +139,10 @@ + reg = <0x03006000 0x1000>; + #address-cells = <1>; + #size-cells = <1>; ++ ++ ths_calibration: thermal-sensor-calibration@14 { ++ reg = <0x14 0x8>; ++ }; + }; + + watchdog: watchdog@30090a0 { +@@ -511,6 +516,19 @@ + }; + }; + ++ ths: thermal-sensor@5070400 { ++ compatible = "allwinner,sun50i-h616-ths"; ++ reg = <0x05070400 0x400>; ++ interrupts = ; ++ clocks = <&ccu CLK_BUS_THS>; ++ clock-names = "bus"; ++ resets = <&ccu RST_BUS_THS>; ++ nvmem-cells = <&ths_calibration>; ++ nvmem-cell-names = "calibration"; ++ allwinner,sram = <&syscon>; ++ #thermal-sensor-cells = <1>; ++ }; ++ + usbotg: usb@5100000 { + compatible = "allwinner,sun50i-h616-musb", + "allwinner,sun8i-h3-musb"; +@@ -755,4 +773,74 @@ + #size-cells = <0>; + }; + }; ++ ++ thermal-zones { ++ cpu-thermal { ++ polling-delay-passive = <500>; ++ polling-delay = <1000>; ++ thermal-sensors = <&ths 2>; ++ sustainable-power = <1000>; ++ ++ trips { ++ cpu_threshold: cpu-trip-0 { ++ temperature = <60000>; ++ type = "passive"; ++ hysteresis = <0>; ++ }; ++ cpu_target: cpu-trip-1 { ++ temperature = <70000>; ++ type = "passive"; ++ hysteresis = <0>; ++ }; ++ cpu_critical: cpu-trip-2 { ++ temperature = <110000>; ++ type = "critical"; ++ hysteresis = <0>; ++ }; ++ }; ++ }; ++ ++ gpu-thermal { ++ polling-delay-passive = <500>; ++ polling-delay = <1000>; ++ thermal-sensors = <&ths 0>; ++ sustainable-power = <1100>; ++ ++ trips { ++ gpu_temp_critical: gpu-trip-0 { ++ temperature = <110000>; ++ type = "critical"; ++ hysteresis = <0>; ++ }; ++ }; ++ }; ++ ++ ve-thermal { ++ polling-delay-passive = <0>; ++ polling-delay = <0>; ++ thermal-sensors = <&ths 1>; ++ ++ trips { ++ ve_temp_critical: ve-trip-0 { ++ temperature = <110000>; ++ type = "critical"; ++ hysteresis = <0>; ++ }; ++ }; ++ }; ++ ++ ddr-thermal { ++ polling-delay-passive = <0>; ++ polling-delay = <0>; ++ thermal-sensors = <&ths 3>; ++ ++ trips { ++ ddr_temp_critical: ddr-trip-0 { ++ temperature = <110000>; ++ type = "critical"; ++ hysteresis = <0>; ++ }; ++ }; ++ }; ++ }; + };