From eb06fa6cf73a8a10615ff0e311faf2eb862be3f6 Mon Sep 17 00:00:00 2001 From: Pawel Dembicki Date: Thu, 15 Feb 2018 22:21:25 +0100 Subject: [PATCH] kernel: generic: fix problem with w1-gpio-custom In boards with fdt is impossible to use kmod-w1-gpio-custom. w1-gpio-custom create platform structure for w1-gpio module, but if board use fdt, data is ignored in w1-gpio probe. This workaround fix the problem. Signed-off-by: Pawel Dembicki (cherry picked from commit aa5838adb7be733c427e63bb6cc702f9a533292d) --- ...problem-with-platfom-data-in-w1-gpio.patch | 43 +++++++++++++++++++ ...problem-with-platfom-data-in-w1-gpio.patch | 43 +++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch create mode 100644 target/linux/generic/pending-4.9/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch diff --git a/target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch b/target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch new file mode 100644 index 0000000000..5ce2bf87b9 --- /dev/null +++ b/target/linux/generic/pending-4.14/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch @@ -0,0 +1,43 @@ +From d9c8bc8c1408f3e8529db6e4e04017b4c579c342 Mon Sep 17 00:00:00 2001 +From: Pawel Dembicki +Date: Sun, 18 Feb 2018 17:08:04 +0100 +Subject: [PATCH] w1: gpio: fix problem with platfom data in w1-gpio + +In devices, where fdt is used, is impossible to apply platform data +without proper fdt node. + +This patch allow to use platform data in devices with fdt. + +Signed-off-by: Pawel Dembicki +--- + drivers/w1/masters/w1-gpio.c | 7 +++---- + 1 file changed, 3 insertions(+), 4 deletions(-) + +diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c +index a90728ceec5a..7b80762941af 100644 +--- a/drivers/w1/masters/w1-gpio.c ++++ b/drivers/w1/masters/w1-gpio.c +@@ -112,17 +112,16 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) + static int w1_gpio_probe(struct platform_device *pdev) + { + struct w1_bus_master *master; +- struct w1_gpio_platform_data *pdata; ++ struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev); + int err; + +- if (of_have_populated_dt()) { ++ if (of_have_populated_dt() && !pdata) { + err = w1_gpio_probe_dt(pdev); + if (err < 0) + return err; ++ pdata = dev_get_platdata(&pdev->dev); + } + +- pdata = dev_get_platdata(&pdev->dev); +- + if (!pdata) { + dev_err(&pdev->dev, "No configuration data\n"); + return -ENXIO; +-- +2.14.1 + diff --git a/target/linux/generic/pending-4.9/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch b/target/linux/generic/pending-4.9/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch new file mode 100644 index 0000000000..5ce2bf87b9 --- /dev/null +++ b/target/linux/generic/pending-4.9/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch @@ -0,0 +1,43 @@ +From d9c8bc8c1408f3e8529db6e4e04017b4c579c342 Mon Sep 17 00:00:00 2001 +From: Pawel Dembicki +Date: Sun, 18 Feb 2018 17:08:04 +0100 +Subject: [PATCH] w1: gpio: fix problem with platfom data in w1-gpio + +In devices, where fdt is used, is impossible to apply platform data +without proper fdt node. + +This patch allow to use platform data in devices with fdt. + +Signed-off-by: Pawel Dembicki +--- + drivers/w1/masters/w1-gpio.c | 7 +++---- + 1 file changed, 3 insertions(+), 4 deletions(-) + +diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c +index a90728ceec5a..7b80762941af 100644 +--- a/drivers/w1/masters/w1-gpio.c ++++ b/drivers/w1/masters/w1-gpio.c +@@ -112,17 +112,16 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) + static int w1_gpio_probe(struct platform_device *pdev) + { + struct w1_bus_master *master; +- struct w1_gpio_platform_data *pdata; ++ struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev); + int err; + +- if (of_have_populated_dt()) { ++ if (of_have_populated_dt() && !pdata) { + err = w1_gpio_probe_dt(pdev); + if (err < 0) + return err; ++ pdata = dev_get_platdata(&pdev->dev); + } + +- pdata = dev_get_platdata(&pdev->dev); +- + if (!pdata) { + dev_err(&pdev->dev, "No configuration data\n"); + return -ENXIO; +-- +2.14.1 + -- 2.30.2