Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
index 7b531fd..829084b 100644
--- a/drivers/irqchip/irq-meson-gpio.c
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2015 Endless Mobile, Inc.
* Author: Carlo Caione <carlo@endlessm.com>
* Copyright (c) 2016 BayLibre, SAS.
* Author: Jerome Brunet <jbrunet@baylibre.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -37,14 +24,25 @@
#define REG_PIN_47_SEL 0x08
#define REG_FILTER_SEL 0x0c
-#define REG_EDGE_POL_MASK(x) (BIT(x) | BIT(16 + (x)))
+/*
+ * Note: The S905X3 datasheet reports that BOTH_EDGE is controlled by
+ * bits 24 to 31. Tests on the actual HW show that these bits are
+ * stuck at 0. Bits 8 to 15 are responsive and have the expected
+ * effect.
+ */
#define REG_EDGE_POL_EDGE(x) BIT(x)
#define REG_EDGE_POL_LOW(x) BIT(16 + (x))
+#define REG_BOTH_EDGE(x) BIT(8 + (x))
+#define REG_EDGE_POL_MASK(x) ( \
+ REG_EDGE_POL_EDGE(x) | \
+ REG_EDGE_POL_LOW(x) | \
+ REG_BOTH_EDGE(x))
#define REG_PIN_SEL_SHIFT(x) (((x) % 4) * 8)
#define REG_FILTER_SEL_SHIFT(x) ((x) * 4)
struct meson_gpio_irq_params {
unsigned int nr_hwirq;
+ bool support_edge_both;
};
static const struct meson_gpio_irq_params meson8_params = {
@@ -67,17 +65,24 @@
.nr_hwirq = 100,
};
+static const struct meson_gpio_irq_params sm1_params = {
+ .nr_hwirq = 100,
+ .support_edge_both = true,
+};
+
static const struct of_device_id meson_irq_gpio_matches[] = {
{ .compatible = "amlogic,meson8-gpio-intc", .data = &meson8_params },
{ .compatible = "amlogic,meson8b-gpio-intc", .data = &meson8b_params },
{ .compatible = "amlogic,meson-gxbb-gpio-intc", .data = &gxbb_params },
{ .compatible = "amlogic,meson-gxl-gpio-intc", .data = &gxl_params },
{ .compatible = "amlogic,meson-axg-gpio-intc", .data = &axg_params },
+ { .compatible = "amlogic,meson-g12a-gpio-intc", .data = &axg_params },
+ { .compatible = "amlogic,meson-sm1-gpio-intc", .data = &sm1_params },
{ }
};
struct meson_gpio_irq_controller {
- unsigned int nr_hwirq;
+ const struct meson_gpio_irq_params *params;
void __iomem *base;
u32 channel_irqs[NUM_CHANNEL];
DECLARE_BITMAP(channel_map, NUM_CHANNEL);
@@ -180,14 +185,22 @@
*/
type &= IRQ_TYPE_SENSE_MASK;
- if (type == IRQ_TYPE_EDGE_BOTH)
- return -EINVAL;
+ /*
+ * New controller support EDGE_BOTH trigger. This setting takes
+ * precedence over the other edge/polarity settings
+ */
+ if (type == IRQ_TYPE_EDGE_BOTH) {
+ if (!ctl->params->support_edge_both)
+ return -EINVAL;
- if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
- val |= REG_EDGE_POL_EDGE(idx);
+ val |= REG_BOTH_EDGE(idx);
+ } else {
+ if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+ val |= REG_EDGE_POL_EDGE(idx);
- if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING))
- val |= REG_EDGE_POL_LOW(idx);
+ if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING))
+ val |= REG_EDGE_POL_LOW(idx);
+ }
spin_lock(&ctl->lock);
@@ -211,7 +224,7 @@
*/
if (sense & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
type |= IRQ_TYPE_LEVEL_HIGH;
- else if (sense & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+ else
type |= IRQ_TYPE_EDGE_RISING;
return type;
@@ -340,15 +353,13 @@
struct meson_gpio_irq_controller *ctl)
{
const struct of_device_id *match;
- const struct meson_gpio_irq_params *params;
int ret;
match = of_match_node(meson_irq_gpio_matches, node);
if (!match)
return -ENODEV;
- params = match->data;
- ctl->nr_hwirq = params->nr_hwirq;
+ ctl->params = match->data;
ret = of_property_read_variable_u32_array(node,
"amlogic,channel-interrupts",
@@ -397,7 +408,8 @@
if (ret)
goto free_channel_irqs;
- domain = irq_domain_create_hierarchy(parent_domain, 0, ctl->nr_hwirq,
+ domain = irq_domain_create_hierarchy(parent_domain, 0,
+ ctl->params->nr_hwirq,
of_node_to_fwnode(node),
&meson_gpio_irq_domain_ops,
ctl);
@@ -408,7 +420,7 @@
}
pr_info("%d to %d gpio interrupt mux initialized\n",
- ctl->nr_hwirq, NUM_CHANNEL);
+ ctl->params->nr_hwirq, NUM_CHANNEL);
return 0;