diff mbox series

[v3,04/14] arm64: dts: qcom: sc7280: Clean up sdc1 / sdc2 pinctrl

Message ID 20220202132301.v3.4.I79baad7f52351aafb470f8b21a9fa79d7031ad6a@changeid
State Accepted
Commit f9800dde34e678d7ed1de9e95b4b65a257fd0f93
Headers show
Series arm64: dts: qcom: sc7x80: A smattering of misc dts cleanups + herobrine-rev1 | expand

Commit Message

Doug Anderson Feb. 2, 2022, 9:23 p.m. UTC 
This patch makes a few improvements to the way that sdc1 / sdc2
pinctrl is specified on sc7280:

1. There's no reason to "group" the sdc pins into one overarching node
and there's a downside: we have to replicate the hierarchy in the
board device tree files. Let's clean this up.

2. There's really not a lot of reason not to list the "pinctrl" for
sdc1 (eMMC) in the SoC dtsi file. These aren't GPIO pins and
everyone's going to specify the same pins.

3. Even though it's likely that boards will need to override pinctrl
for sdc2 (SD card) to add the card detect GPIO, we can be symmetric
and add it to the SoC dsti file.

4. Let's get rid of the word "on" from the normal config and add a
"sleep" suffix to the sleep config. This looks cleaner to me.

This is intended to be a no-op change but it could plausibly change
behavior depending on how the pinctrl code parses things. One thing to
note is that "SD card detect" is explicitly listed now as keeping its
pull enabled in sleep since we still want to detect card insertions
even if the controller is suspended (because no card is inserted). The
pinctrl framework likely did this anyway, but it's nice to see it
explicit.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

Changes in v3:
- Removed extra blank lines

 .../qcom/sc7280-herobrine-herobrine-r0.dts    |  73 +++++------
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi      |  91 +++++++-------
 arch/arm64/boot/dts/qcom/sc7280.dtsi          | 117 +++++++++---------
 3 files changed, 133 insertions(+), 148 deletions(-)

Comments

Matthias Kaehlcke Feb. 2, 2022, 10:42 p.m. UTC | #1 
On Wed, Feb 02, 2022 at 01:23:38PM -0800, Douglas Anderson wrote:
> This patch makes a few improvements to the way that sdc1 / sdc2
> pinctrl is specified on sc7280:
> 
> 1. There's no reason to "group" the sdc pins into one overarching node
> and there's a downside: we have to replicate the hierarchy in the
> board device tree files. Let's clean this up.
> 
> 2. There's really not a lot of reason not to list the "pinctrl" for
> sdc1 (eMMC) in the SoC dtsi file. These aren't GPIO pins and
> everyone's going to specify the same pins.
> 
> 3. Even though it's likely that boards will need to override pinctrl
> for sdc2 (SD card) to add the card detect GPIO, we can be symmetric
> and add it to the SoC dsti file.
> 
> 4. Let's get rid of the word "on" from the normal config and add a
> "sleep" suffix to the sleep config. This looks cleaner to me.
> 
> This is intended to be a no-op change but it could plausibly change
> behavior depending on how the pinctrl code parses things. One thing to
> note is that "SD card detect" is explicitly listed now as keeping its
> pull enabled in sleep since we still want to detect card insertions
> even if the controller is suspended (because no card is inserted). The
> pinctrl framework likely did this anyway, but it's nice to see it
> explicit.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Stephen Boyd Feb. 3, 2022, 9:28 p.m. UTC | #2 
Quoting Douglas Anderson (2022-02-02 13:23:38)
> This patch makes a few improvements to the way that sdc1 / sdc2
> pinctrl is specified on sc7280:
>
> 1. There's no reason to "group" the sdc pins into one overarching node
> and there's a downside: we have to replicate the hierarchy in the
> board device tree files. Let's clean this up.
>
> 2. There's really not a lot of reason not to list the "pinctrl" for
> sdc1 (eMMC) in the SoC dtsi file. These aren't GPIO pins and
> everyone's going to specify the same pins.
>
> 3. Even though it's likely that boards will need to override pinctrl
> for sdc2 (SD card) to add the card detect GPIO, we can be symmetric
> and add it to the SoC dsti file.
>
> 4. Let's get rid of the word "on" from the normal config and add a
> "sleep" suffix to the sleep config. This looks cleaner to me.
>
> This is intended to be a no-op change but it could plausibly change
> behavior depending on how the pinctrl code parses things. One thing to
> note is that "SD card detect" is explicitly listed now as keeping its
> pull enabled in sleep since we still want to detect card insertions
> even if the controller is suspended (because no card is inserted). The
> pinctrl framework likely did this anyway, but it's nice to see it
> explicit.
>
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine-herobrine-r0.dts b/arch/arm64/boot/dts/qcom/sc7280-herobrine-herobrine-r0.dts
index f159b5a6d7ef..918352c097bc 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-herobrine-herobrine-r0.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine-herobrine-r0.dts
@@ -676,9 +676,6 @@  &qupv3_id_1 {
 &sdhc_1 {
 	status = "okay";
 
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&sdc1_on>;
-	pinctrl-1 = <&sdc1_off>;
 	vmmc-supply = <&pp2950_l7b>;
 	vqmmc-supply = <&pp1800_l19b>;
 };
@@ -686,9 +683,8 @@  &sdhc_1 {
 &sdhc_2 {
 	status = "okay";
 
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&sdc2_on>;
-	pinctrl-1 = <&sdc2_off>;
+	pinctrl-0 = <&sdc2_clk>, <&sdc2_cmd>, <&sdc2_data>, <&sd_cd>;
+	pinctrl-1 = <&sdc2_clk_sleep>, <&sdc2_cmd_sleep>, <&sdc2_data_sleep>, <&sd_cd>;
 	vmmc-supply = <&pp2950_l9c>;
 	vqmmc-supply = <&ppvar_l6c>;
 
@@ -883,47 +879,38 @@  &qup_uart7_rx {
 	bias-pull-up;
 };
 
-&sdc1_on {
-	clk {
-		bias-disable;
-		drive-strength = <16>;
-	};
-
-	cmd {
-		bias-pull-up;
-		drive-strength = <10>;
-	};
+&sdc1_clk {
+	bias-disable;
+	drive-strength = <16>;
+};
 
-	data {
-		bias-pull-up;
-		drive-strength = <10>;
-	};
+&sdc1_cmd {
+	bias-pull-up;
+	drive-strength = <10>;
+};
 
-	rclk {
-		bias-pull-down;
-	};
+&sdc1_data {
+	bias-pull-up;
+	drive-strength = <10>;
 };
 
-&sdc2_on {
-	clk {
-		bias-disable;
-		drive-strength = <16>;
-	};
+&sdc1_rclk {
+	bias-pull-down;
+};
 
-	cmd {
-		bias-pull-up;
-		drive-strength = <10>;
-	};
+&sdc2_clk {
+	bias-disable;
+	drive-strength = <16>;
+};
 
-	data {
-		bias-pull-up;
-		drive-strength = <10>;
-	};
+&sdc2_cmd {
+	bias-pull-up;
+	drive-strength = <10>;
+};
 
-	sd-cd {
-		pins = "gpio91";
-		bias-pull-up;
-	};
+&sdc2_data {
+	bias-pull-up;
+	drive-strength = <10>;
 };
 
 /* PINCTRL - board-specific pinctrl */
@@ -1311,6 +1298,12 @@  qup_uart7_sleep_tx: qup-uart7-sleep-tx {
 		bias-pull-up;
 	};
 
+	sd_cd: sd-cd {
+		pins = "gpio91";
+		function = "gpio";
+		bias-pull-up;
+	};
+
 	tp_int_odl: tp-int-odl {
 		pins = "gpio102";
 		function = "gpio";
diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 78da9ac983db..7a987bc9b758 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -278,10 +278,6 @@  &qupv3_id_1 {
 &sdhc_1 {
 	status = "okay";
 
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&sdc1_on>;
-	pinctrl-1 = <&sdc1_off>;
-
 	non-removable;
 	no-sd;
 	no-sdio;
@@ -293,9 +289,8 @@  &sdhc_1 {
 &sdhc_2 {
 	status = "okay";
 
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&sdc2_on>;
-	pinctrl-1 = <&sdc2_off>;
+	pinctrl-0 = <&sdc2_clk>, <&sdc2_cmd>, <&sdc2_data>, <&sd_cd>;
+	pinctrl-1 = <&sdc2_clk_sleep>, <&sdc2_cmd_sleep>, <&sdc2_data_sleep>, <&sd_cd>;
 
 	vmmc-supply = <&vreg_l9c_2p9>;
 	vqmmc-supply = <&vreg_l6c_2p9>;
@@ -424,6 +419,40 @@  &qup_uart7_rx {
 	bias-pull-up;
 };
 
+&sdc1_clk {
+	bias-disable;
+	drive-strength = <16>;
+};
+
+&sdc1_cmd {
+	bias-pull-up;
+	drive-strength = <10>;
+};
+
+&sdc1_data {
+	bias-pull-up;
+	drive-strength = <10>;
+};
+
+&sdc1_rclk {
+	bias-pull-down;
+};
+
+&sdc2_clk {
+	bias-disable;
+	drive-strength = <16>;
+};
+
+&sdc2_cmd {
+	bias-pull-up;
+	drive-strength = <10>;
+};
+
+&sdc2_data {
+	bias-pull-up;
+	drive-strength = <10>;
+};
+
 &tlmm {
 	bt_en: bt-en {
 		pins = "gpio85";
@@ -496,53 +525,17 @@  qup_uart7_sleep_rx: qup-uart7-sleep-rx {
 		bias-pull-up;
 	};
 
-	sw_ctrl: sw-ctrl {
-		pins = "gpio86";
+	sd_cd: sd-cd {
+		pins = "gpio91";
 		function = "gpio";
-		input-enable;
-		bias-pull-down;
-	};
-};
-
-&sdc1_on {
-	clk {
-		bias-disable;
-		drive-strength = <16>;
-	};
-
-	cmd {
 		bias-pull-up;
-		drive-strength = <10>;
 	};
 
-	data {
-		bias-pull-up;
-		drive-strength = <10>;
-	};
-
-	rclk {
+	sw_ctrl: sw-ctrl {
+		pins = "gpio86";
+		function = "gpio";
+		input-enable;
 		bias-pull-down;
 	};
 };
 
-&sdc2_on {
-	clk {
-		bias-disable;
-		drive-strength = <16>;
-	};
-
-	cmd {
-		bias-pull-up;
-		drive-strength = <10>;
-	};
-
-	data {
-		bias-pull-up;
-		drive-strength = <10>;
-	};
-
-	sd-cd {
-		pins = "gpio91";
-		bias-pull-up;
-	};
-};
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 40cb414bc377..5b1e23991a6a 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -616,6 +616,9 @@  qfprom: efuse@784000 {
 
 		sdhc_1: sdhci@7c4000 {
 			compatible = "qcom,sc7280-sdhci", "qcom,sdhci-msm-v5";
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&sdc1_clk>, <&sdc1_cmd>, <&sdc1_data>, <&sdc1_rclk>;
+			pinctrl-1 = <&sdc1_clk_sleep>, <&sdc1_cmd_sleep>, <&sdc1_data_sleep>, <&sdc1_rclk_sleep>;
 			status = "disabled";
 
 			reg = <0 0x007c4000 0 0x1000>,
@@ -2425,6 +2428,9 @@  apss_merge_funnel_in: endpoint {
 
 		sdhc_2: sdhci@8804000 {
 			compatible = "qcom,sc7280-sdhci", "qcom,sdhci-msm-v5";
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&sdc2_clk>, <&sdc2_cmd>, <&sdc2_data>;
+			pinctrl-1 = <&sdc2_clk_sleep>, <&sdc2_cmd_sleep>, <&sdc2_data_sleep>;
 			status = "disabled";
 
 			reg = <0 0x08804000 0 0x1000>;
@@ -3943,81 +3949,74 @@  qup_uart15_rx: qup-uart15-rx {
 				function = "qup17";
 			};
 
-			sdc1_on: sdc1-on {
-				clk {
-					pins = "sdc1_clk";
-				};
+			sdc1_clk: sdc1-clk {
+				pins = "sdc1_clk";
+			};
 
-				cmd {
-					pins = "sdc1_cmd";
-				};
+			sdc1_cmd: sdc1-cmd {
+				pins = "sdc1_cmd";
+			};
 
-				data {
-					pins = "sdc1_data";
-				};
+			sdc1_data: sdc1-data {
+				pins = "sdc1_data";
+			};
 
-				rclk {
-					pins = "sdc1_rclk";
-				};
+			sdc1_rclk: sdc1-rclk {
+				pins = "sdc1_rclk";
 			};
 
-			sdc1_off: sdc1-off {
-				clk {
-					pins = "sdc1_clk";
-					drive-strength = <2>;
-					bias-bus-hold;
-				};
+			sdc1_clk_sleep: sdc1-clk-sleep {
+				pins = "sdc1_clk";
+				drive-strength = <2>;
+				bias-bus-hold;
+			};
 
-				cmd {
-					pins = "sdc1_cmd";
-					drive-strength = <2>;
-					bias-bus-hold;
-				};
+			sdc1_cmd_sleep: sdc1-cmd-sleep {
+				pins = "sdc1_cmd";
+				drive-strength = <2>;
+				bias-bus-hold;
+			};
 
-				data {
-					pins = "sdc1_data";
-					drive-strength = <2>;
-					bias-bus-hold;
-				};
+			sdc1_data_sleep: sdc1-data-sleep {
+				pins = "sdc1_data";
+				drive-strength = <2>;
+				bias-bus-hold;
+			};
 
-				rclk {
-					pins = "sdc1_rclk";
-					bias-bus-hold;
-				};
+			sdc1_rclk_sleep: sdc1-rclk-sleep {
+				pins = "sdc1_rclk";
+				drive-strength = <2>;
+				bias-bus-hold;
 			};
 
-			sdc2_on: sdc2-on {
-				clk {
-					pins = "sdc2_clk";
-				};
+			sdc2_clk: sdc2-clk {
+				pins = "sdc2_clk";
+			};
 
-				cmd {
-					pins = "sdc2_cmd";
-				};
+			sdc2_cmd: sdc2-cmd {
+				pins = "sdc2_cmd";
+			};
 
-				data {
-					pins = "sdc2_data";
-				};
+			sdc2_data: sdc2-data {
+				pins = "sdc2_data";
 			};
 
-			sdc2_off: sdc2-off {
-				clk {
-					pins = "sdc2_clk";
-					drive-strength = <2>;
-					bias-bus-hold;
-				};
+			sdc2_clk_sleep: sdc2-clk-sleep {
+				pins = "sdc2_clk";
+				drive-strength = <2>;
+				bias-bus-hold;
+			};
 
-				cmd {
-					pins ="sdc2_cmd";
-					drive-strength = <2>;
-					bias-bus-hold;
-				};
+			sdc2_cmd_sleep: sdc2-cmd-sleep {
+				pins = "sdc2_cmd";
+				drive-strength = <2>;
+				bias-bus-hold;
+			};
 
-				data {
-					pins ="sdc2_data";
-					drive-strength = <2>;
-					bias-bus-hold;
-				};
+			sdc2_data_sleep: sdc2-data-sleep {
+				pins = "sdc2_data";
+				drive-strength = <2>;
+				bias-bus-hold;
 			};
 		};