| Message ID | a539758e798631b54a85df102a1c6635e1f70b37.1608719420.git.hns@goldelico.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | DTS: ARM: gta04: SPI panel chip select is active low | expand |
* H. Nikolaus Schaller <hns@goldelico.com> [201223 12:33]: > With the arrival of > > commit 2fee9583198eb9 ("spi: dt-bindings: clarify CS behavior for spi-cs-high and gpio descriptors") > > it was clarified what the proper state for cs-gpios should be, even if the > flag is ignored. The driver code is doing the right thing since > > 766c6b63aa04 ("spi: fix client driver breakages when using GPIO descriptors") > > The chip-select of the td028ttec1 panel is active-low, so we must omit spi-cs-high; > attribute (already removed by separate patch) and should now use GPIO_ACTIVE_LOW for > the client device description to be fully consistent. Applying into fixes thanks. Tony
diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi index 003202d129907b..7b8c18e6605e40 100644 --- a/arch/arm/boot/dts/omap3-gta04.dtsi +++ b/arch/arm/boot/dts/omap3-gta04.dtsi @@ -114,7 +114,7 @@ spi_lcd: spi_lcd { gpio-sck = <&gpio1 12 GPIO_ACTIVE_HIGH>; gpio-miso = <&gpio1 18 GPIO_ACTIVE_HIGH>; gpio-mosi = <&gpio1 20 GPIO_ACTIVE_HIGH>; - cs-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>; + cs-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>; num-chipselects = <1>; /* lcd panel */
With the arrival of commit 2fee9583198eb9 ("spi: dt-bindings: clarify CS behavior for spi-cs-high and gpio descriptors") it was clarified what the proper state for cs-gpios should be, even if the flag is ignored. The driver code is doing the right thing since 766c6b63aa04 ("spi: fix client driver breakages when using GPIO descriptors") The chip-select of the td028ttec1 panel is active-low, so we must omit spi-cs-high; attribute (already removed by separate patch) and should now use GPIO_ACTIVE_LOW for the client device description to be fully consistent. Fixes: 766c6b63aa04 ("spi: fix client driver breakages when using GPIO descriptors") CC: stable@vger.kernel.org Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> --- arch/arm/boot/dts/omap3-gta04.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)