linux-kernel - [PATCH v2 1/3] arm64: dts: rockchip: px30: max drive-strength for cif_clkout

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Date:   Mon, 20 Jun 2022 18:13:18 +0200
From:   Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxfancy@...glegroups.com, linux-amarula@...rulasolutions.com,
        jacopo@...ndi.org,
        Tommaso Merciai <tommaso.merciai@...rulasolutions.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/3] arm64: dts: rockchip: px30: max drive-strength for cif_clkout_m0

Add max drive-strength for cif_clkout_m0. This fix the issue that
sometimes camera ov5695 is not probed correctly.
Tested on PX30_Mini_EVB_V11_20190507

Signed-off-by: Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
Tested-by: Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
---
Changes since v1:
 - Drop off 1. use regulator_bulk_enable/regulator_bulk disable instead of for 
   loop into ov5695 power_on/power_off

 arch/arm64/boot/dts/rockchip/px30-evb.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/px30-evb.dts b/arch/arm64/boot/dts/rockchip/px30-evb.dts
index 73003efeec86..cc73d4bfc5b1 100644
--- a/arch/arm64/boot/dts/rockchip/px30-evb.dts
+++ b/arch/arm64/boot/dts/rockchip/px30-evb.dts
@@ -536,6 +536,13 @@ wifi_enable_h: wifi-enable-h {
 				<0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
+
+	cif-m0 {
+		cif_clkout_m0: cif-clkout-m0 {
+			rockchip,pins =
+				<2 RK_PB3 1 &pcfg_pull_none_12ma>;
+		};
+	};
 };
 
 &pmu_io_domains {
-- 
2.25.1