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Message-Id: <20200511192517.1206442-3-lkundrak@v3.sk>
Date: Mon, 11 May 2020 21:25:09 +0200
From: Lubomir Rintel <lkundrak@...sk>
To: Michael Turquette <mturquette@...libre.com>
Cc: Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>,
linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, Lubomir Rintel <lkundrak@...sk>
Subject: [PATCH v2 02/10] clk: mmp: frac: Allow setting bits other than the numerator/denominator
For the I2S fractional clocks, there are more bits that need to be set
for the clock to run. Their actual meaning is unknown.
Signed-off-by: Lubomir Rintel <lkundrak@...sk>
---
drivers/clk/mmp/clk-frac.c | 3 +++
drivers/clk/mmp/clk.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c
index ed9928f5bdc7..48f592bd633d 100644
--- a/drivers/clk/mmp/clk-frac.c
+++ b/drivers/clk/mmp/clk-frac.c
@@ -148,7 +148,10 @@ static int clk_factor_init(struct clk_hw *hw)
val &= ~(masks->den_mask << masks->den_shift);
val |= (factor->ftbl[0].den & masks->den_mask) <<
masks->den_shift;
+ }
+ if (!(val & masks->enable_mask) || i >= factor->ftbl_cnt) {
+ val |= masks->enable_mask;
writel(val, factor->base);
}
diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h
index 971b4d6d992f..0efd5b0b2f01 100644
--- a/drivers/clk/mmp/clk.h
+++ b/drivers/clk/mmp/clk.h
@@ -16,6 +16,7 @@ struct mmp_clk_factor_masks {
unsigned int den_mask;
unsigned int num_shift;
unsigned int den_shift;
+ unsigned int enable_mask;
};
struct mmp_clk_factor_tbl {
--
2.26.2
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