linux-kernel - [PATCH v4 0/2] mark spi clocks as critical and enable spi3 clocks

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Date:	Thu, 07 Jul 2016 21:13:55 +0900
From:	Andi Shyti <andi.shyti@...sung.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>
Cc:	Jaehoon Chung <jh80.chung@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Andi Shyti <andi.shyti@...sung.com>,
	Andi Shyti <andi@...zian.org>
Subject: [PATCH v4 0/2] mark spi clocks as critical and enable spi3 clocks

Hi,

I managed to bring some confusion on these two patches, but
finally I managed to find the right solution (which is similar to
the patch version 2).

The real issue was hidden in the spi bus as reported in the
following patch:

  https://lkml.org/lkml/2016/7/7/81

This patch in principle replaces the clock_ignore_unused flags in
for the spi and enables the spi3 that in the tm2(e) board will be
connected to the IR remote controller.

Changelog:

V1 -> V2
 - the "sclk_spi3" doesn't need to be enabled in boot time as it
  is handled by the spi driver itself.

 - use the CLK_IS_CRITICAL flag for the ioclk

V2 -> V3
 - some more tests has confirmed taht "sclk_spi1,3" need to be
   enabled as critical!

 - added Chanwoo's review in the second commit.

V3 -> V4
 - patch V3 was wrong, back to patch v2.

 - reworded the commit of patch no. 1

Thanks,
Andi

Andi Shyti (2):
  clk: exynos5433: do not use CLK_IGNORE_UNUSED for SPI clocks
  clk: exynos5433: enable sclk_ioclk for SPI3

 drivers/clk/samsung/clk-exynos5433.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

-- 
2.8.1