From: Daniel Golle Date: Thu, 20 Apr 2023 17:34:47 +0000 (+0100) Subject: mediatek: update patch add PWM support for MT7981 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c68c71eaa97189a7ed2840009a6fdfb370d69e5c;p=openwrt%2Fstaging%2Fxback.git mediatek: update patch add PWM support for MT7981 Update patch with version submitted upstream. Signed-off-by: Daniel Golle --- diff --git a/target/linux/mediatek/patches-5.15/811-pwm-mediatek-Add-support-for-MT7981.patch b/target/linux/mediatek/patches-5.15/811-pwm-mediatek-Add-support-for-MT7981.patch index ab465a7582..8f27462cbd 100644 --- a/target/linux/mediatek/patches-5.15/811-pwm-mediatek-Add-support-for-MT7981.patch +++ b/target/linux/mediatek/patches-5.15/811-pwm-mediatek-Add-support-for-MT7981.patch @@ -1,6 +1,6 @@ -From 947b535ebfe161e1725f1030a09de10d1460371c Mon Sep 17 00:00:00 2001 +From 73d20ebc21c562fbe79d02fa0fa38e095e716fa9 Mon Sep 17 00:00:00 2001 From: Daniel Golle -Date: Mon, 23 Jan 2023 20:47:34 +0000 +Date: Wed, 19 Apr 2023 20:25:51 +0100 Subject: [PATCH] pwm: mediatek: Add support for MT7981 The PWM unit on MT7981 uses different register offsets than previous @@ -10,27 +10,20 @@ used for a temperature controlled fan. Signed-off-by: Daniel Golle --- - drivers/pwm/pwm-mediatek.c | 54 ++++++++++++++++++++++++++++++++------ - 1 file changed, 46 insertions(+), 8 deletions(-) + drivers/pwm/pwm-mediatek.c | 41 ++++++++++++++++++++++++++++++-------- + 1 file changed, 33 insertions(+), 8 deletions(-) --- a/drivers/pwm/pwm-mediatek.c +++ b/drivers/pwm/pwm-mediatek.c -@@ -34,10 +34,14 @@ - - #define PWM_CLK_DIV_MAX 7 - -+#define REG_V1 1 -+#define REG_V2 2 -+ - struct pwm_mediatek_of_data { +@@ -38,6 +38,7 @@ struct pwm_mediatek_of_data { unsigned int num_pwms; bool pwm45_fixup; bool has_ck_26m_sel; -+ u8 reg_ver; ++ const unsigned int *reg_offset; }; /** -@@ -59,10 +63,14 @@ struct pwm_mediatek_chip { +@@ -59,10 +60,14 @@ struct pwm_mediatek_chip { const struct pwm_mediatek_of_data *soc; }; @@ -40,169 +33,86 @@ Signed-off-by: Daniel Golle }; +static const unsigned int mtk_pwm_reg_offset_v2[] = { -+ 0x0080, 0x00c0, 0x0100, 0x0140, 0x0180, 0x1c0, 0x200, 0x0240 ++ 0x0080, 0x00c0, 0x0100, 0x0140, 0x0180, 0x01c0, 0x0200, 0x0240 +}; + static inline struct pwm_mediatek_chip * to_pwm_mediatek_chip(struct pwm_chip *chip) { -@@ -111,7 +119,19 @@ static inline void pwm_mediatek_writel(s +@@ -111,7 +116,7 @@ static inline void pwm_mediatek_writel(s unsigned int num, unsigned int offset, u32 value) { - writel(value, chip->regs + pwm_mediatek_reg_offset[num] + offset); -+ u32 pwm_offset; -+ -+ switch (chip->soc->reg_ver) { -+ case REG_V2: -+ pwm_offset = mtk_pwm_reg_offset_v2[num]; -+ break; -+ -+ case REG_V1: -+ default: -+ pwm_offset = mtk_pwm_reg_offset_v1[num]; -+ } -+ -+ writel(value, chip->regs + pwm_offset + offset); ++ writel(value, chip->regs + chip->soc->reg_offset[num] + offset); } static int pwm_mediatek_config(struct pwm_chip *chip, struct pwm_device *pwm, -@@ -146,7 +166,7 @@ static int pwm_mediatek_config(struct pw - - if (clkdiv > PWM_CLK_DIV_MAX) { - pwm_mediatek_clk_disable(chip, pwm); -- dev_err(chip->dev, "period %d not supported\n", period_ns); -+ dev_err(chip->dev, "period of %d ns not supported\n", period_ns); - return -EINVAL; - } - -@@ -221,24 +241,20 @@ static int pwm_mediatek_probe(struct pla - if (IS_ERR(pc->regs)) - return PTR_ERR(pc->regs); - -- pc->clk_pwms = devm_kcalloc(&pdev->dev, pc->soc->num_pwms, -+ pc->clk_pwms = devm_kmalloc_array(&pdev->dev, pc->soc->num_pwms, - sizeof(*pc->clk_pwms), GFP_KERNEL); - if (!pc->clk_pwms) - return -ENOMEM; - - pc->clk_top = devm_clk_get(&pdev->dev, "top"); -- if (IS_ERR(pc->clk_top)) { -- dev_err(&pdev->dev, "clock: top fail: %ld\n", -- PTR_ERR(pc->clk_top)); -- return PTR_ERR(pc->clk_top); -- } -+ if (IS_ERR(pc->clk_top)) -+ return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk_top), -+ "Failed to get top clock\n"); - - pc->clk_main = devm_clk_get(&pdev->dev, "main"); -- if (IS_ERR(pc->clk_main)) { -- dev_err(&pdev->dev, "clock: main fail: %ld\n", -- PTR_ERR(pc->clk_main)); -- return PTR_ERR(pc->clk_main); -- } -+ if (IS_ERR(pc->clk_main)) -+ return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk_main), -+ "Failed to get main clock\n"); - - for (i = 0; i < pc->soc->num_pwms; i++) { - char name[8]; -@@ -246,11 +262,9 @@ static int pwm_mediatek_probe(struct pla - snprintf(name, sizeof(name), "pwm%d", i + 1); - - pc->clk_pwms[i] = devm_clk_get(&pdev->dev, name); -- if (IS_ERR(pc->clk_pwms[i])) { -- dev_err(&pdev->dev, "clock: %s fail: %ld\n", -- name, PTR_ERR(pc->clk_pwms[i])); -- return PTR_ERR(pc->clk_pwms[i]); -- } -+ if (IS_ERR(pc->clk_pwms[i])) -+ return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk_pwms[i]), -+ "Failed to get %s clock\n", name); - } - - pc->chip.dev = &pdev->dev; -@@ -258,10 +272,8 @@ static int pwm_mediatek_probe(struct pla - pc->chip.npwm = pc->soc->num_pwms; - - ret = devm_pwmchip_add(&pdev->dev, &pc->chip); -- if (ret < 0) { -- dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret); -- return ret; -- } -+ if (ret < 0) -+ return dev_err_probe(&pdev->dev, ret, "pwmchip_add() failed\n"); - - return 0; - } -@@ -270,48 +282,63 @@ static const struct pwm_mediatek_of_data +@@ -270,48 +275,63 @@ static const struct pwm_mediatek_of_data .num_pwms = 8, .pwm45_fixup = false, .has_ck_26m_sel = false, -+ .reg_ver = REG_V1, ++ .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7622_pwm_data = { .num_pwms = 6, .pwm45_fixup = false, .has_ck_26m_sel = true, -+ .reg_ver = REG_V1, ++ .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7623_pwm_data = { .num_pwms = 5, .pwm45_fixup = true, .has_ck_26m_sel = false, -+ .reg_ver = REG_V1, ++ .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7628_pwm_data = { .num_pwms = 4, .pwm45_fixup = true, .has_ck_26m_sel = false, -+ .reg_ver = REG_V1, ++ .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt7629_pwm_data = { .num_pwms = 1, .pwm45_fixup = false, .has_ck_26m_sel = false, -+ .reg_ver = REG_V1, ++ .reg_offset = mtk_pwm_reg_offset_v1, }; --static const struct pwm_mediatek_of_data mt8183_pwm_data = { -- .num_pwms = 4, -+static const struct pwm_mediatek_of_data mt7981_pwm_data = { -+ .num_pwms = 3, + static const struct pwm_mediatek_of_data mt8183_pwm_data = { + .num_pwms = 4, .pwm45_fixup = false, .has_ck_26m_sel = true, -+ .reg_ver = REG_V2, ++ .reg_offset = mtk_pwm_reg_offset_v1, ++}; ++ ++static const struct pwm_mediatek_of_data mt7981_pwm_data = { ++ .num_pwms = 3, ++ .pwm45_fixup = false, ++ .has_ck_26m_sel = true, ++ .reg_offset = mtk_pwm_reg_offset_v2, }; static const struct pwm_mediatek_of_data mt7986_pwm_data = { .num_pwms = 2, .pwm45_fixup = false, .has_ck_26m_sel = true, -+ .reg_ver = REG_V1, -+}; -+ -+static const struct pwm_mediatek_of_data mt8183_pwm_data = { -+ .num_pwms = 4, -+ .pwm45_fixup = false, -+ .has_ck_26m_sel = true, -+ .reg_ver = REG_V1, ++ .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct pwm_mediatek_of_data mt8516_pwm_data = { .num_pwms = 5, .pwm45_fixup = false, .has_ck_26m_sel = true, -+ .reg_ver = REG_V1, ++ .reg_offset = mtk_pwm_reg_offset_v1, }; static const struct of_device_id pwm_mediatek_of_match[] = { -@@ -320,6 +347,7 @@ static const struct of_device_id pwm_med +@@ -320,6 +340,7 @@ static const struct of_device_id pwm_med { .compatible = "mediatek,mt7623-pwm", .data = &mt7623_pwm_data }, { .compatible = "mediatek,mt7628-pwm", .data = &mt7628_pwm_data }, { .compatible = "mediatek,mt7629-pwm", .data = &mt7629_pwm_data },