Thread (3 messages) 3 messages, 3 authors, 2015-04-13

[PATCH] clk: samsung: exynos4: Disable ARMCLK down feature on Exynos4210 SoC

From: Krzysztof Kozlowski <hidden>
Date: 2015-03-28 16:37:10
Also in: linux-samsung-soc, lkml, stable

2015-03-27 17:27 GMT+01:00 Bartlomiej Zolnierkiewicz [off-list ref]:
Commit 42773b28e71d ("clk: samsung: exynos4: Enable ARMCLK
down feature") enabled ARMCLK down feature on all Exynos4
SoCs.  Unfortunately on Exynos4210 SoC ARMCLK down feature
causes a lockup when ondemand cpufreq governor is used.
Fix it by limiting ARMCLK down feature to Exynos4x12 SoCs.

This patch was tested on:
- Exynos4210 SoC based Trats board
- Exynos4210 SoC based Origen board
- Exynos4412 SoC based Trats2 board
- Exynos4412 SoC based Odroid-U3 board

Cc: Krzysztof Kozlowski <redacted>
Cc: Daniel Drake <redacted>
Cc: Tomasz Figa <redacted>
Cc: Kukjin Kim <kgene@kernel.org>
Fixes: 42773b28e71d ("clk: samsung: exynos4: Enable ARMCLK down feature")
Cc: <redacted> # v3.17+
Signed-off-by: Bartlomiej Zolnierkiewicz <redacted>
---
 drivers/clk/samsung/clk-exynos4.c |   11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)
Reviewed-by: Krzysztof Kozlowski <redacted>

Best regards,
Krzysztof
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