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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>
This commit is contained in:
Yann Gautier 2020-10-22 15:37:22 +02:00
parent 078925be4f
commit ba57711c38
1 changed files with 8 additions and 2 deletions
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10
drivers/st/clk/stm32mp_clkfunc.c
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@ -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 @@ uint32_t fdt_osc_read_uint32_default(enum stm32mp_osc_id osc_id,
*/
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;
}
/*