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| author | Mark Brown <broonie@kernel.org> | 2020-08-25 13:01:46 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-08-25 13:01:46 +0300 |
| commit | 3bec5b6aae830355e786e204b20a7cea38c3a8ed (patch) | |
| tree | fd597b87faf55ceb2a207ee94f4feca6276696db /drivers/gpio/gpiolib-of.c | |
| parent | a577f3456c0a2fac3dee037c483753e6e68f3e49 (diff) | |
| parent | d012a7190fc1fd72ed48911e77ca97ba4521bccd (diff) | |
| download | linux-3bec5b6aae830355e786e204b20a7cea38c3a8ed.tar.xz | |
Merge tag 'v5.9-rc2' into regulator-5.9
Linux 5.9-rc2
Diffstat (limited to 'drivers/gpio/gpiolib-of.c')
| -rw-r--r-- | drivers/gpio/gpiolib-of.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 219eb0054233..bd31dd3b6a75 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -25,8 +25,11 @@ /** * of_gpio_spi_cs_get_count() - special GPIO counting for SPI + * @dev: Consuming device + * @con_id: Function within the GPIO consumer + * * Some elder GPIO controllers need special quirks. Currently we handle - * the Freescale GPIO controller with bindings that doesn't use the + * the Freescale and PPC GPIO controller with bindings that doesn't use the * established "cs-gpios" for chip selects but instead rely on * "gpios" for the chip select lines. If we detect this, we redirect * the counting of "cs-gpios" to count "gpios" transparent to the @@ -41,7 +44,8 @@ static int of_gpio_spi_cs_get_count(struct device *dev, const char *con_id) if (!con_id || strcmp(con_id, "cs")) return 0; if (!of_device_is_compatible(np, "fsl,spi") && - !of_device_is_compatible(np, "aeroflexgaisler,spictrl")) + !of_device_is_compatible(np, "aeroflexgaisler,spictrl") && + !of_device_is_compatible(np, "ibm,ppc4xx-spi")) return 0; return of_gpio_named_count(np, "gpios"); } @@ -405,9 +409,10 @@ static struct gpio_desc *of_find_spi_cs_gpio(struct device *dev, if (!IS_ENABLED(CONFIG_SPI_MASTER)) return ERR_PTR(-ENOENT); - /* Allow this specifically for Freescale devices */ + /* Allow this specifically for Freescale and PPC devices */ if (!of_device_is_compatible(np, "fsl,spi") && - !of_device_is_compatible(np, "aeroflexgaisler,spictrl")) + !of_device_is_compatible(np, "aeroflexgaisler,spictrl") && + !of_device_is_compatible(np, "ibm,ppc4xx-spi")) return ERR_PTR(-ENOENT); /* Allow only if asking for "cs-gpios" */ if (!con_id || strcmp(con_id, "cs")) |