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| author | Samuel Holland <samuel@sholland.org> | 2022-08-14 23:12:40 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-05 10:40:48 +0200 |
| commit | 44a9633e9e16c83c2befac6b96552a61bf167f75 (patch) | |
| tree | f041b8dae8cf2a7aacfd18f3d0d8dd50f383d5a6 | |
| parent | 24d6230edfc2af0d2bd95d6b6371a03c4f070959 (diff) | |
| download | linux-44a9633e9e16c83c2befac6b96552a61bf167f75.tar.gz linux-44a9633e9e16c83c2befac6b96552a61bf167f75.tar.bz2 linux-44a9633e9e16c83c2befac6b96552a61bf167f75.zip | |
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>
| -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 a8f3876963a0..f3d3f9259df9 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; |