stm32mp1: update device tree and gpio functions
Change fdt_check_status function to fdt_get_status.
Update GPIO defines.
Move some functions in gpio driver, instead of dt helper file.
Add GPIO bank helper functions.
Use only one status field in dt_node_info structure including both status
and secure status.
Change-Id: I34f93408dd4aac16ae722f564bc3f7d6ae978cf4
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
diff --git a/drivers/st/clk/stm32mp1_clkfunc.c b/drivers/st/clk/stm32mp1_clkfunc.c
index e176f97..19dfe1b 100644
--- a/drivers/st/clk/stm32mp1_clkfunc.c
+++ b/drivers/st/clk/stm32mp1_clkfunc.c
@@ -32,6 +32,14 @@
};
/*******************************************************************************
+ * This function returns the RCC node in the device tree.
+ ******************************************************************************/
+static int fdt_get_rcc_node(void *fdt)
+{
+ return fdt_node_offset_by_compatible(fdt, -1, DT_RCC_CLK_COMPAT);
+}
+
+/*******************************************************************************
* This function reads the frequency of an oscillator from its name.
* It reads the value indicated inside the device tree.
* Returns 0 on success, and a negative FDT/ERRNO error code on failure.
@@ -240,7 +248,7 @@
/*******************************************************************************
* This function gets the subnode offset in rcc-clk section from its name.
* It reads the values indicated inside the device tree.
- * Returns offset if success, and a negative value else.
+ * Returns offset on success, and a negative FDT/ERRNO error code on failure.
******************************************************************************/
int fdt_rcc_subnode_offset(const char *name)
{
@@ -251,7 +259,7 @@
return -ENOENT;
}
- node = fdt_node_offset_by_compatible(fdt, -1, DT_RCC_CLK_COMPAT);
+ node = fdt_get_rcc_node(fdt);
if (node < 0) {
return -FDT_ERR_NOTFOUND;
}
@@ -280,7 +288,7 @@
return NULL;
}
- node = fdt_node_offset_by_compatible(fdt, -1, DT_RCC_CLK_COMPAT);
+ node = fdt_get_rcc_node(fdt);
if (node < 0) {
return NULL;
}
@@ -297,7 +305,7 @@
/*******************************************************************************
* This function gets the secure status for rcc node.
* It reads secure-status in device tree.
- * Returns 1 if rcc is available from secure world, 0 else.
+ * Returns true if rcc is available from secure world, false if not.
******************************************************************************/
bool fdt_get_rcc_secure_status(void)
{
@@ -308,18 +316,18 @@
return false;
}
- node = fdt_node_offset_by_compatible(fdt, -1, DT_RCC_COMPAT);
+ node = fdt_get_rcc_node(fdt);
if (node < 0) {
return false;
}
- return fdt_check_secure_status(node);
+ return (fdt_get_status(node) & DT_SECURE) != 0U;
}
/*******************************************************************************
* This function reads the stgen base address.
* It reads the value indicated inside the device tree.
- * Returns address if success, and NULL value else.
+ * Returns address on success, and NULL value on failure.
******************************************************************************/
uintptr_t fdt_get_stgen_base(void)
{
@@ -347,7 +355,7 @@
/*******************************************************************************
* This function gets the clock ID of the given node.
* It reads the value indicated inside the device tree.
- * Returns ID if success, and a negative value else.
+ * Returns ID on success, and a negative FDT/ERRNO error code on failure.
******************************************************************************/
int fdt_get_clock_id(int node)
{