Messages in this thread | | | From | Krzysztof Kozlowski <> | Subject | [PATCH v4 0/3] Fix Arndale Octa/Peach Pi boot on Audio subsystem clocks | Date | Fri, 05 Dec 2014 12:00:51 +0100 |
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Hi,
Changes since v3 ================ 1. Patch 1/3: Fix issues pointed by Sylwester. 2. Add Javier's tested-by [1]
Changes since v2 ================ 1. Patch 1 applied ("clk: samsung: Fix double add of syscore ops after driver rebind"), remove it. 2. Squash patch 5 with "clk: samsung: Fix clock disable failure because domain being gated". Suggested by Sylwester. 3. Patch 1/3: Fix issues pointed by Sylwester. 4. Patch 2/3: Fix redundant clk_disable when removing driver (clk is already disabled). Add missing check !=null when removing driver. 5. Patch 3/3: Extend commit message.
Tomasz Figa had some questions about power domains on Exynos5420 in relation to this patchset, but I haven't addressed all of them yet.
Changes since v1 ================ 1. clocks-audss: Reimplement own clock register functions instead changing clk API. Minor fixes. (after idea from Tomasz Figa) 2. Add new patches: fix for pinctrl and minor fixes in clk-audss.
Description =========== This patchset tries to solve dependency between AudioSS components (clocks and GPIO) and main clock controller on Exynos 5420 platform.
This solves boot failure of Peach Pi/Pit and Arndale Octa [2].
Any access to memory of audss block (like checking if clock is enabled or configuring GPIO) will hang if main audss clock is gated.
Tested on Arndale Octa board.
[1] https://lkml.org/lkml/2014/11/26/420 [2] http://www.spinics.net/lists/linux-samsung-soc/msg39331.html
Best regards, Krzysztof Kozlowski
Krzysztof Kozlowski (3): clk: samsung: Fix clock disable failure because domain being gated pinctrl: exynos: Fix GPIO setup failure because domain clock being gated ARM: dts: exynos5420: Add clock for audss pinctrl (fixing GPIO setup failure)
.../bindings/pinctrl/samsung-pinctrl.txt | 6 + arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 3 + drivers/clk/samsung/clk-exynos-audss.c | 339 ++++++++++++++++++--- drivers/pinctrl/samsung/pinctrl-samsung.c | 111 ++++++- drivers/pinctrl/samsung/pinctrl-samsung.h | 2 + 5 files changed, 418 insertions(+), 43 deletions(-)
-- 1.9.1
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