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From: Stephen Boyd <swboyd@chromium.org>
To: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-arm-msm@vger.kernel.org,
	Douglas Anderson <dianders@chromium.org>,
	Taniya Das <tdas@codeaurora.org>
Subject: Re: [PATCH] clk: qcom: gcc-sdm845: Use floor ops for sdcc clks
Date: Mon, 09 Sep 2019 03:25:00 -0700
Message-ID: <5d76287d.1c69fb81.1631c.4ca4@mx.google.com> (raw)
In-Reply-To: <20190830195142.103564-1-swboyd@chromium.org>

Quoting Stephen Boyd (2019-08-30 12:51:42)
> Some MMC cards fail to enumerate properly when inserted into an MMC slot
> on sdm845 devices. This is because the clk ops for qcom clks round the
> frequency up to the nearest rate instead of down to the nearest rate.
> For example, the MMC driver requests a frequency of 52MHz from
> clk_set_rate() but the qcom implementation for these clks rounds 52MHz
> up to the next supported frequency of 100MHz. The MMC driver could be
> modified to request clk rate ranges but for now we can fix this in the
> clk driver by changing the rounding policy for this clk to be round down
> instead of round up.
> 
> Fixes: 06391eddb60a ("clk: qcom: Add Global Clock controller (GCC) driver for SDM845")
> Reported-by: Douglas Anderson <dianders@chromium.org>
> Cc: Taniya Das <tdas@codeaurora.org>
> Signed-off-by: Stephen Boyd <swboyd@chromium.org>
> ---

Applied to clk-next


      parent reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-30 19:51 Stephen Boyd
2019-08-30 21:34 ` Doug Anderson
2019-09-03 15:52   ` Taniya Das
2019-09-03 22:47     ` Stephen Boyd
2019-09-05  9:22       ` Taniya Das
2019-09-09 10:25 ` Stephen Boyd [this message]

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