From: Enric Balletbo i Serra <enric.balletbo@collabora.com> To: linux-kernel@vger.kernel.org Cc: kernel@collabora.com, devicetree@vger.kernel.org, Heiko Stuebner <heiko@sntech.de>, linux-rockchip@lists.infradead.org, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, linux-arm-kernel@lists.infradead.org Subject: [PATCH] arm64: dts: rockchip: Use default brightness table for gru. Date: Tue, 16 Oct 2018 16:13:04 +0200 [thread overview] Message-ID: <20181016141304.21984-1-enric.balletbo@collabora.com> (raw) After commit 88ba95bedb79 ("backlight: pwm_bl: Compute brightness of LED linearly to human eye") the pwm_bl driver is able to calculate a default brightness table. The calculated table for this PWM will have more granularity and will be adjusted to change the brightness linearly to the human eye. Use that table instead of have a DT-defined table with less granularity. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> --- Hi Heiko, Note that the patch was only tested on a Samsung Chromebook Plus (kevin), will be very interesting if someone can test on other gru-based devices, like Bob, before apply this patch. Best regards, Enric arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi index ae8bb721005e..8dbe2c58b3ce 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi @@ -194,14 +194,6 @@ backlight: backlight { compatible = "pwm-backlight"; - brightness-levels = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 - 17 18 19 20 21 22 23 24 25 26 27 28 29 30 - 31 32 33 34 35 36 37 38 39 40 41 42 43 44 - 45 46 47 48 49 50 51 52 53 54 55 56 57 58 - 59 60 61 62 63 64 65 66 67 68 69 70 71 72 - 73 74 75 76 77 78 79 80 81 82 83 84 85 86 - 87 88 89 90 91 92 93 94 95 96 97 98 99 100>; - default-brightness-level = <51>; enable-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>; power-supply = <&pp3300_disp>; pinctrl-names = "default"; -- 2.19.1
WARNING: multiple messages have this Message-ID (diff)
From: enric.balletbo@collabora.com (Enric Balletbo i Serra) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] arm64: dts: rockchip: Use default brightness table for gru. Date: Tue, 16 Oct 2018 16:13:04 +0200 [thread overview] Message-ID: <20181016141304.21984-1-enric.balletbo@collabora.com> (raw) After commit 88ba95bedb79 ("backlight: pwm_bl: Compute brightness of LED linearly to human eye") the pwm_bl driver is able to calculate a default brightness table. The calculated table for this PWM will have more granularity and will be adjusted to change the brightness linearly to the human eye. Use that table instead of have a DT-defined table with less granularity. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> --- Hi Heiko, Note that the patch was only tested on a Samsung Chromebook Plus (kevin), will be very interesting if someone can test on other gru-based devices, like Bob, before apply this patch. Best regards, Enric arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi index ae8bb721005e..8dbe2c58b3ce 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi @@ -194,14 +194,6 @@ backlight: backlight { compatible = "pwm-backlight"; - brightness-levels = <0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 - 17 18 19 20 21 22 23 24 25 26 27 28 29 30 - 31 32 33 34 35 36 37 38 39 40 41 42 43 44 - 45 46 47 48 49 50 51 52 53 54 55 56 57 58 - 59 60 61 62 63 64 65 66 67 68 69 70 71 72 - 73 74 75 76 77 78 79 80 81 82 83 84 85 86 - 87 88 89 90 91 92 93 94 95 96 97 98 99 100>; - default-brightness-level = <51>; enable-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>; power-supply = <&pp3300_disp>; pinctrl-names = "default"; -- 2.19.1
next reply other threads:[~2018-10-16 14:13 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-10-16 14:13 Enric Balletbo i Serra [this message] 2018-10-16 14:13 ` [PATCH] arm64: dts: rockchip: Use default brightness table for gru Enric Balletbo i Serra 2018-10-30 20:35 ` Heiko Stuebner 2018-10-30 20:35 ` Heiko Stuebner
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