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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Tomasz Figa <tomasz.figa@gmail.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org,
	Kukjin Kim <kgene@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
	javier@osg.samsung.com, Linus Walleij <linus.walleij@linaro.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Krzysztof Kozlowski <k.kozlowski@samsung.com>
Subject: [PATCH v3 13/17] ARM: dts: exynos: Fix mismatched values of SD drive strengh configuration on exynos4415
Date: Sun,  4 Sep 2016 13:04:16 +0200	[thread overview]
Message-ID: <1472987060-28293-14-git-send-email-krzk@kernel.org> (raw)
In-Reply-To: <1472987060-28293-1-git-send-email-krzk@kernel.org>

From: Krzysztof Kozlowski <k.kozlowski@samsung.com>

The pinctrl drive strength register on exynos4415 is 2-bit wide for each
pin.  The pins for SD2 were configured with value of 4.  The driver does
not validate the value so this overflow effectively set a bit 1 in
adjacent pins thus configuring them to drive strength 2x.

The author's intention was probably to set drive strength of 4x.
All other SD pins are configured with drive strength of 4x.  Fix these
with same pattern.

Fixes: 9246e7ff24c5 ("ARM: dts: Add dts files for exynos4415 SoC")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 arch/arm/boot/dts/exynos4415-pinctrl.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4415-pinctrl.dtsi b/arch/arm/boot/dts/exynos4415-pinctrl.dtsi
index f54aee53b6ec..76cfd872ead3 100644
--- a/arch/arm/boot/dts/exynos4415-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos4415-pinctrl.dtsi
@@ -480,14 +480,14 @@
 		samsung,pins = "gpk2-0";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	sd2_cmd: sd2-cmd {
 		samsung,pins = "gpk2-1";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	sd2_cd: sd2-cd {
@@ -501,14 +501,14 @@
 		samsung,pins = "gpk2-3";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	sd2_bus4: sd2-bus-width4 {
 		samsung,pins = "gpk2-4", "gpk2-5", "gpk2-6";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	cam_port_b_io: cam-port-b-io {
-- 
2.7.4

WARNING: multiple messages have this Message-ID
From: krzk@kernel.org (Krzysztof Kozlowski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 13/17] ARM: dts: exynos: Fix mismatched values of SD drive strengh configuration on exynos4415
Date: Sun,  4 Sep 2016 13:04:16 +0200	[thread overview]
Message-ID: <1472987060-28293-14-git-send-email-krzk@kernel.org> (raw)
In-Reply-To: <1472987060-28293-1-git-send-email-krzk@kernel.org>

From: Krzysztof Kozlowski <k.kozlowski@samsung.com>

The pinctrl drive strength register on exynos4415 is 2-bit wide for each
pin.  The pins for SD2 were configured with value of 4.  The driver does
not validate the value so this overflow effectively set a bit 1 in
adjacent pins thus configuring them to drive strength 2x.

The author's intention was probably to set drive strength of 4x.
All other SD pins are configured with drive strength of 4x.  Fix these
with same pattern.

Fixes: 9246e7ff24c5 ("ARM: dts: Add dts files for exynos4415 SoC")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
 arch/arm/boot/dts/exynos4415-pinctrl.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4415-pinctrl.dtsi b/arch/arm/boot/dts/exynos4415-pinctrl.dtsi
index f54aee53b6ec..76cfd872ead3 100644
--- a/arch/arm/boot/dts/exynos4415-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos4415-pinctrl.dtsi
@@ -480,14 +480,14 @@
 		samsung,pins = "gpk2-0";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	sd2_cmd: sd2-cmd {
 		samsung,pins = "gpk2-1";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	sd2_cd: sd2-cd {
@@ -501,14 +501,14 @@
 		samsung,pins = "gpk2-3";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	sd2_bus4: sd2-bus-width4 {
 		samsung,pins = "gpk2-4", "gpk2-5", "gpk2-6";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
-		samsung,pin-drv = <4>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 	};
 
 	cam_port_b_io: cam-port-b-io {
-- 
2.7.4

  parent reply	other threads:[~2016-09-04 11:06 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-04 11:04 [PATCH v3 00/17] pinctrl: exynos/samsung: Add header with values used for configuration Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 01/17] pinctrl: dt-bindings: samsung: " Krzysztof Kozlowski
2016-09-07 21:18   ` Linus Walleij
     [not found]     ` <CGME20160916075624eucas1p23a12de912f92f0c557f17fbd394b186e@eucas1p2.samsung.com>
2016-09-16  7:56       ` Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 02/17] pinctrl: dt-bindings: samsung: Update documentation with new macros Krzysztof Kozlowski
     [not found]   ` <1472987060-28293-3-git-send-email-krzk-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2016-09-07 21:19     ` Linus Walleij
2016-09-12 16:10     ` Rob Herring
2016-09-07 21:19   ` Linus Walleij
2016-09-12 16:10   ` Rob Herring
2016-09-04 11:04 ` [PATCH v3 03/17] ARM: dts: exynos: Use common macros for pinctrl configuration Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 04/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos3250 Krzysztof Kozlowski
     [not found] ` <1472987060-28293-1-git-send-email-krzk-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2016-09-04 11:04   ` [PATCH v3 02/17] pinctrl: dt-bindings: samsung: Update documentation with new macros Krzysztof Kozlowski
2016-09-04 11:04   ` [PATCH v3 05/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos4210 Krzysztof Kozlowski
2016-09-04 11:04   ` [PATCH v3 06/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos4x12 Krzysztof Kozlowski
2016-09-04 11:04   ` [PATCH v3 12/17] ARM: dts: exynos: Fix mismatched value for SD4 pull up/down configuration on exynos4210 Krzysztof Kozlowski
2016-10-09  7:04   ` [PATCH v3 00/17] pinctrl: exynos/samsung: Add header with values used for configuration Tomasz Figa
2016-09-04 11:04 ` [PATCH v3 05/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos4210 Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 06/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos4x12 Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 07/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos4415 Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 08/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos5250 Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 09/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos5260 Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 10/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos5410 Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 11/17] ARM: dts: exynos: Use macros for pinctrl configuration on exynos542x/exynos5800 Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 12/17] ARM: dts: exynos: Fix mismatched value for SD4 pull up/down configuration on exynos4210 Krzysztof Kozlowski
2016-09-04 11:04 ` Krzysztof Kozlowski [this message]
2016-09-04 11:04 ` [PATCH v3 14/17] ARM: dts: s3c64xx: Use common macros for pinctrl configuration Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 15/17] ARM: dts: s5pv210: Use " Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 16/17] ARM: dts: s3c2416: " Krzysztof Kozlowski
2016-09-04 11:04 ` [PATCH v3 17/17] ARM: dts: s3c64xx: " Krzysztof Kozlowski
2016-10-09  7:04 ` [PATCH v3 00/17] pinctrl: exynos/samsung: Add header with values used for configuration Tomasz Figa
2016-10-09 16:39   ` Krzysztof Kozlowski
2016-10-09 17:49     ` Tomasz Figa
     [not found]       ` <CA+Ln22GgjF=wVzL3fF7xzvOZtJpiZjVcFTrvDQAu6T2RCfY89g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-10-09 17:52         ` Krzysztof Kozlowski
2016-10-09 17:52       ` Krzysztof Kozlowski
2016-10-21  9:02 ` Linus Walleij

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