| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.0 078/115] i3c: dw: Fix dw_i3c_master_disable controller by using correct mask | Date | Wed, 24 Apr 2019 19:10:14 +0200 |
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From: Vitor Soares <vitor.soares@synopsys.com>
commit 907621e94d49b85cd76f13110eceb940a182c69e upstream.
The controller was being disabled incorrectly. The correct way is to clear the DEV_CTRL_ENABLE bit.
Fix this by clearing this bit.
Cc: Boris Brezillon <bbrezillon@kernel.org> Cc: <stable@vger.kernel.org> Fixes: 1dd728f5d4d4 ("i3c: master: Add driver for Synopsys DesignWare IP") Signed-off-by: Vitor Soares <vitor.soares@synopsys.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/i3c/master/dw-i3c-master.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/i3c/master/dw-i3c-master.c +++ b/drivers/i3c/master/dw-i3c-master.c @@ -300,7 +300,7 @@ to_dw_i3c_master(struct i3c_master_contr static void dw_i3c_master_disable(struct dw_i3c_master *master) { - writel(readl(master->regs + DEVICE_CTRL) & DEV_CTRL_ENABLE, + writel(readl(master->regs + DEVICE_CTRL) & ~DEV_CTRL_ENABLE, master->regs + DEVICE_CTRL); }
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