Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1237830

Re: [PATCH v3] clk: rockchip: reset init state before mmc card initialization

Show all headers | View raw

On 09/04, Shawn Lin wrote:
> mmc host controller's IO input/output timing is unpredictable if
> bootloader execute tuning for HS200 mode. It might make kernel failed
> to initialize mmc card in identification mode. The root cause is
> tuning phase and degree setting for HS200 mode in bootloader aren't
> applicable to that of identification mode in kernel stage. Anyway, we
> can't force all bootloaders to reset tuning phase and degree setting
> before into kernel. Simply reset it in rockchip_clk_register_mmc.
> 
> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
> 
> Reviewed-by: Heiko Stuebner <heiko@sntech.de>
> ---

Applied to clk-next

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

Re: [PATCH v3] clk: rockchip: reset init state before mmc card  initialization Stephen Boyd <sboyd@codeaurora.org> - 2015-10-02 01:40 +0200

csiph-web