From: Joel Stanley <joel@jms.id.au>
To: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: linux-aspeed@lists.ozlabs.org, Andrew Jeffery <andrew@aj.id.au>
Subject: [PATCH] clk: ast2600: Fix enabling of clocks
Date: Wed, 16 Oct 2019 23:43:19 +1030 [thread overview]
Message-ID: <20191016131319.31318-1-joel@jms.id.au> (raw)
The struct clk_ops enable callback for the aspeed gates mixes up the set
to clear and write to set registers.
Fixes: d3d04f6c330a ("clk: Add support for AST2600 SoC")
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
---
drivers/clk/clk-ast2600.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/clk-ast2600.c b/drivers/clk/clk-ast2600.c
index 1c1bb39bb04e..b1318e6b655b 100644
--- a/drivers/clk/clk-ast2600.c
+++ b/drivers/clk/clk-ast2600.c
@@ -266,10 +266,11 @@ static int aspeed_g6_clk_enable(struct clk_hw *hw)
/* Enable clock */
if (gate->flags & CLK_GATE_SET_TO_DISABLE) {
- regmap_write(gate->map, get_clock_reg(gate), clk);
- } else {
- /* Use set to clear register */
+ /* Clock is clear to enable, so use set to clear register */
regmap_write(gate->map, get_clock_reg(gate) + 0x04, clk);
+ } else {
+ /* Clock is set to enable, so use write to set register */
+ regmap_write(gate->map, get_clock_reg(gate), clk);
}
if (gate->reset_idx >= 0) {
--
2.23.0
next reply other threads:[~2019-10-16 13:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 13:13 Joel Stanley [this message]
2019-10-28 23:40 ` [PATCH] clk: ast2600: Fix enabling of clocks Stephen Boyd
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