i3c: dw: Fix dw_i3c_master_disable controller by using correct mask

BugLink: https://bugs.launchpad.net/bugs/1830922
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>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index bb03079fbade164806047e17aa697c0f886bd5b0..ec385fbfef4c79b76f040c0bdf3f1970e28ebeb6 100644 (file)
--- 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_controller *master)
 
 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);
 }