linux-kernel - [PATCH 4.11 77/78] ARM: dts: am335x-sl50: Fix cannot claim requested pins for spi0

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Date:   Mon, 19 Jun 2017 23:16:17 +0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Tony Lindgren <tony@...mide.com>
Subject: [PATCH 4.11 77/78] ARM: dts: am335x-sl50: Fix cannot claim requested pins for spi0

4.11-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Enric Balletbo i Serra <enric.balletbo@...labora.com>

commit db145db99f5bf30acc12d7450b9ad0707072a7be upstream.

We don't need to bitbang these pins anymore, instead we muxed these
pins as SPI, after this change, done in commit 6c69f726, we introduced
the following error:

 pinctrl-single 44e10800.pinmux: pin PIN85 already requested \
 by 44e10800.pinmux; cannot claim for 48030000.spi
 pinctrl-single 44e10800.pinmux: pin-85 (48030000.spi) status -22

Fixes: 6c69f726 ("ARM: dts: am335x-sl50: Enable SPI0 interface and Flash Memory")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/boot/dts/am335x-sl50.dts |    4 ----
 1 file changed, 4 deletions(-)

--- a/arch/arm/boot/dts/am335x-sl50.dts
+++ b/arch/arm/boot/dts/am335x-sl50.dts
@@ -280,10 +280,6 @@
 			AM33XX_IOPAD(0x834, PIN_INPUT_PULLUP | MUX_MODE7)	/* nKbdReset - gpmc_ad13.gpio1_13 */
 			AM33XX_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE7)	/* nDispReset - gpmc_ad14.gpio1_14 */
 			AM33XX_IOPAD(0x844, PIN_INPUT_PULLUP | MUX_MODE7)	/* USB1_enPower - gpmc_a1.gpio1_17 */
-			/* AVR Programming - SPI Bus (bit bang) - Screen and Keyboard */
-			AM33XX_IOPAD(0x954, PIN_INPUT_PULLUP | MUX_MODE7)	/* Kbd/Disp/BattMOSI spi0_d0.gpio0_3 */
-			AM33XX_IOPAD(0x958, PIN_INPUT_PULLUP | MUX_MODE7)	/* Kbd/Disp/BattMISO spi0_d1.gpio0_4 */
-			AM33XX_IOPAD(0x950, PIN_INPUT_PULLUP | MUX_MODE7)	/* Kbd/Disp/BattSCLK spi0_clk.gpio0_2 */
 			/* PDI Bus - Battery system */
 			AM33XX_IOPAD(0x840, PIN_INPUT_PULLUP | MUX_MODE7)	/* nBattReset  gpmc_a0.gpio1_16 */
 			AM33XX_IOPAD(0x83c, PIN_INPUT_PULLUP | MUX_MODE7)	/* BattPDIData gpmc_ad15.gpio1_15 */