linux-kernel - [PATCH] memory/samsung: Maybe wrong triming parameter

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Message-Id: <20200507114514.11589-1-bernard@vivo.com>
Date:   Thu,  7 May 2020 04:45:14 -0700
From:   Bernard Zhao <bernard@...o.com>
To:     Lukasz Luba <lukasz.luba@....com>, Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com, Bernard Zhao <bernard@...o.com>
Subject: [PATCH] memory/samsung: Maybe wrong triming parameter

In function create_timings_aligned, all the max is to use
dmc->min_tck->xxx, aligned with val dmc->timings->xxx.
But the dmc->timings->tFAW use dmc->min_tck->tXP?
Maybe this point is wrong parameter useing.

Signed-off-by: Bernard Zhao <bernard@...o.com>
---
 drivers/memory/samsung/exynos5422-dmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsung/exynos5422-dmc.c
index 81a1b1d01683..22a43d662833 100644
--- a/drivers/memory/samsung/exynos5422-dmc.c
+++ b/drivers/memory/samsung/exynos5422-dmc.c
@@ -1091,7 +1091,7 @@ static int create_timings_aligned(struct exynos5_dmc *dmc, u32 *reg_timing_row,
 	/* power related timings */
 	val = dmc->timings->tFAW / clk_period_ps;
 	val += dmc->timings->tFAW % clk_period_ps ? 1 : 0;
-	val = max(val, dmc->min_tck->tXP);
+	val = max(val, dmc->min_tck->tFAW);
 	reg = &timing_power[0];
 	*reg_timing_power |= TIMING_VAL2REG(reg, val);
 
-- 
2.26.2