From mboxrd@z Thu Jan 1 00:00:00 1970 From: sboyd@codeaurora.org (Stephen Boyd) Date: Thu, 1 Oct 2015 16:37:01 -0700 Subject: [PATCH v3] clk: rockchip: reset init state before mmc card initialization In-Reply-To: <1441325733-4131-1-git-send-email-shawn.lin@rock-chips.com> References: <1441325733-4131-1-git-send-email-shawn.lin@rock-chips.com> Message-ID: <20151001233701.GY19319@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > > Reviewed-by: Heiko Stuebner > --- Applied to clk-next -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project