generic: backport bcm63xx SPI reset fix

Fixes SPI and HSSPI coexistance on bmips bcm6362 and bcm63268.

Signed-off-by: Álvaro Fernández Rojas <[email protected]>
(cherry picked from commit ba1017bf74a6735a23d8873623fb48b42d831c56)

diff --git a/target/linux/generic/backport-6.6/421-01-v6.16-spi-bcm63xx-spi-fix-shared-reset.patch b/target/linux/generic/backport-6.6/421-01-v6.16-spi-bcm63xx-spi-fix-shared-reset.patch
new file mode 100644 (file)
index 0000000..e886350
--- /dev/null
+++ b/target/linux/generic/backport-6.6/421-01-v6.16-spi-bcm63xx-spi-fix-shared-reset.patch
@@ -0,0 +1,32 @@
+From 5ad20e3d8cfe3b2e42bbddc7e0ebaa74479bb589 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <[email protected]>
+Date: Thu, 29 May 2025 15:09:14 +0200
+Subject: [PATCH] spi: bcm63xx-spi: fix shared reset
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Some bmips SoCs (bcm6362, bcm63268) share the same SPI reset for both SPI
+and HSSPI controllers, so reset shouldn't be exclusive.
+
+Fixes: 38807adeaf1e ("spi: bcm63xx-spi: add reset support")
+Reported-by: Jonas Gorski <[email protected]>
+Signed-off-by: Álvaro Fernández Rojas <[email protected]>
+Reviewed-by: Florian Fainelli <[email protected]>
+Link: https://patch.msgid.link/[email protected]
+Signed-off-by: Mark Brown <[email protected]>
+---
+ drivers/spi/spi-bcm63xx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/spi/spi-bcm63xx.c
++++ b/drivers/spi/spi-bcm63xx.c
+@@ -523,7 +523,7 @@ static int bcm63xx_spi_probe(struct plat
+               return PTR_ERR(clk);
+       }
+ 
+-      reset = devm_reset_control_get_optional_exclusive(dev, NULL);
++      reset = devm_reset_control_get_optional_shared(dev, NULL);
+       if (IS_ERR(reset))
+               return PTR_ERR(reset);
+ 

diff --git a/target/linux/generic/backport-6.6/421-02-v6.16-spi-bcm63xx-hsspi-fix-shared-reset.patch b/target/linux/generic/backport-6.6/421-02-v6.16-spi-bcm63xx-hsspi-fix-shared-reset.patch
new file mode 100644 (file)
index 0000000..3c30269
--- /dev/null
+++ b/target/linux/generic/backport-6.6/421-02-v6.16-spi-bcm63xx-hsspi-fix-shared-reset.patch
@@ -0,0 +1,32 @@
+From 3d6d84c8f2f66d3fd6a43a1e2ce8e6b54c573960 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <[email protected]>
+Date: Thu, 29 May 2025 15:09:15 +0200
+Subject: [PATCH] spi: bcm63xx-hsspi: fix shared reset
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Some bmips SoCs (bcm6362, bcm63268) share the same SPI reset for both SPI
+and HSSPI controllers, so reset shouldn't be exclusive.
+
+Fixes: 0eeadddbf09a ("spi: bcm63xx-hsspi: add reset support")
+Reported-by: Jonas Gorski <[email protected]>
+Signed-off-by: Álvaro Fernández Rojas <[email protected]>
+Reviewed-by: Florian Fainelli <[email protected]>
+Link: https://patch.msgid.link/[email protected]
+Signed-off-by: Mark Brown <[email protected]>
+---
+ drivers/spi/spi-bcm63xx-hsspi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/spi/spi-bcm63xx-hsspi.c
++++ b/drivers/spi/spi-bcm63xx-hsspi.c
+@@ -745,7 +745,7 @@ static int bcm63xx_hsspi_probe(struct pl
+       if (IS_ERR(clk))
+               return PTR_ERR(clk);
+ 
+-      reset = devm_reset_control_get_optional_exclusive(dev, NULL);
++      reset = devm_reset_control_get_optional_shared(dev, NULL);
+       if (IS_ERR(reset))
+               return PTR_ERR(reset);
+