refactor(stm32mp_clk): keep RCC node offset
To avoid parsing device tree file too often, keep the RCC node
offset value in a variable in fdt_get_rcc_node().
Change-Id: Ibb23ff92247d57c65a23517b8f3473f639794d2a
Signed-off-by: Yann Gautier <yann.gautier@st.com>
diff --git a/drivers/st/clk/stm32mp_clkfunc.c b/drivers/st/clk/stm32mp_clkfunc.c
index 2101171..d57f120 100644
--- a/drivers/st/clk/stm32mp_clkfunc.c
+++ b/drivers/st/clk/stm32mp_clkfunc.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2020, STMicroelectronics - All Rights Reserved
+ * Copyright (c) 2017-2021, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -163,7 +163,13 @@
*/
static int fdt_get_rcc_node(void *fdt)
{
- return fdt_node_offset_by_compatible(fdt, -1, DT_RCC_CLK_COMPAT);
+ static int node;
+
+ if (node <= 0) {
+ node = fdt_node_offset_by_compatible(fdt, -1, DT_RCC_CLK_COMPAT);
+ }
+
+ return node;
}
/*