linux-kernel - [PATCH 1/2] memory: omap-gpmc: Clear GPMC_CS

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Message-Id: <20210727101034.32148-1-tony@atomide.com>
Date:   Tue, 27 Jul 2021 13:10:33 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Roger Quadros <rogerq@...com>, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, Roger Quadros <rogerq@...nel.org>
Subject: [PATCH 1/2] memory: omap-gpmc: Clear GPMC_CS_CONFIG7 register on restore if unused

We want to clear any unused GPMC_CS_CONFIG7 register on restore to
ensure unused chip selects are not enabled.

Cc: Roger Quadros <rogerq@...nel.org>
Signed-off-by: Tony Lindgren <tony@...mide.com>
---
 drivers/memory/omap-gpmc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -2595,6 +2595,8 @@ void omap3_gpmc_restore_context(void)
 				gpmc_context.cs_context[i].config6);
 			gpmc_cs_write_reg(i, GPMC_CS_CONFIG7,
 				gpmc_context.cs_context[i].config7);
+		} else {
+			gpmc_cs_write_reg(i, GPMC_CS_CONFIG7, 0);
 		}
 	}
 }
-- 
2.32.0