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| author | Samuel Holland <samuel@sholland.org> | 2022-08-15 07:12:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-05 11:38:41 +0300 |
| commit | 3e0405c69bc9e3717f247c1849a31545098997c1 (patch) | |
| tree | b2534d076e4ff8bd40dd855e26a1d3008a7250f8 /drivers/soc | |
| parent | a658f0bc72cb4e9189ced0713da5b6f536f6941b (diff) | |
| download | linux-3e0405c69bc9e3717f247c1849a31545098997c1.tar.xz | |
soc: sunxi: sram: Actually claim SRAM regions
[ Upstream commit fd362baad2e659ef0fb5652f023a606b248f1781 ]
sunxi_sram_claim() checks the sram_desc->claimed flag before updating
the register, with the intent that only one device can claim a region.
However, this was ineffective because the flag was never set.
Fixes: 4af34b572a85 ("drivers: soc: sunxi: Introduce SoC driver to map SRAMs")
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220815041248.53268-4-samuel@sholland.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/sunxi/sunxi_sram.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c index d4c7bd59429e..5d1305483542 100644 --- a/drivers/soc/sunxi/sunxi_sram.c +++ b/drivers/soc/sunxi/sunxi_sram.c @@ -254,6 +254,7 @@ int sunxi_sram_claim(struct device *dev) writel(val | ((device << sram_data->offset) & mask), base + sram_data->reg); + sram_desc->claimed = true; spin_unlock(&sram_lock); return 0; |