AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

memory: samsung: exynos5422-dmc: Fix tFAW timings alignment

Browse Source 
Aligning of tFAW timing with standard was using wrong argument as
minimum acceptable value.  This could lead to wrong timing if provided
timings and clock period do not match the standard.

Fixes: 6e7674c3c6 ("memory: Add DMC driver for Exynos5422")
Cc: <stable@vger.kernel.org>
Signed-off-by: Bernard Zhao <bernard@vivo.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Bernard Zhao 2020-05-07 04:45:14 -07:00 committed by Krzysztof Kozlowski
parent 8f3d9f3542
commit 4bff7214d2
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/memory/samsung/exynos5422-dmc.c
View File

@ -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);