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soc: fsl: qe: introduce qe_get_device_node helper 

The 'try of_find_compatible_node(NULL, NULL, "fsl,qe"), fall back to
of_find_node_by_type(NULL, "qe")' pattern is repeated five
times. Factor it into a common helper.

Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Qiang Zhao <qiang.zhao@nxp.com>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
This commit is contained in:
Rasmus Villemoes 2019-05-13 11:14:57 +00:00 committed by Li Yang
parent 875f2aabfc
commit d7fc596366
1 changed files with 29 additions and 42 deletions
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71
drivers/soc/fsl/qe/qe.c
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@ -56,6 +56,20 @@ static unsigned int qe_num_of_snum;
static phys_addr_t qebase = -1;
static struct device_node *qe_get_device_node(void)
{
struct device_node *qe;
/*
* Newer device trees have an "fsl,qe" compatible property for the QE
* node, but we still need to support older device trees.
*/
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (qe)
return qe;
return of_find_node_by_type(NULL, "qe");
}
static phys_addr_t get_qe_base(void)
{
struct device_node *qe;
@ -65,12 +79,9 @@ static phys_addr_t get_qe_base(void)
if (qebase != -1)
return qebase;
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (!qe) {
qe = of_find_node_by_type(NULL, "qe");
if (!qe)
return qebase;
}
qe = qe_get_device_node();
if (!qe)
return qebase;
ret = of_address_to_resource(qe, 0, &res);
if (!ret)
@ -164,12 +175,9 @@ unsigned int qe_get_brg_clk(void)
if (brg_clk)
return brg_clk;
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (!qe) {
qe = of_find_node_by_type(NULL, "qe");
if (!qe)
return brg_clk;
}
qe = qe_get_device_node();
if (!qe)
return brg_clk;
prop = of_get_property(qe, "brg-frequency", &size);
if (prop && size == sizeof(*prop))
@ -558,16 +566,9 @@ struct qe_firmware_info *qe_get_firmware_info(void)
initialized = 1;
/*
* Newer device trees have an "fsl,qe" compatible property for the QE
* node, but we still need to support older device trees.
*/
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (!qe) {
qe = of_find_node_by_type(NULL, "qe");
if (!qe)
return NULL;
}
qe = qe_get_device_node();
if (!qe)
return NULL;
/* Find the 'firmware' child node */
fw = of_get_child_by_name(qe, "firmware");
@ -613,16 +614,9 @@ unsigned int qe_get_num_of_risc(void)
unsigned int num_of_risc = 0;
const u32 *prop;
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (!qe) {
/* Older devices trees did not have an "fsl,qe"
* compatible property, so we need to look for
* the QE node by name.
*/
qe = of_find_node_by_type(NULL, "qe");
if (!qe)
return num_of_risc;
}
qe = qe_get_device_node();
if (!qe)
return num_of_risc;
prop = of_get_property(qe, "fsl,qe-num-riscs", &size);
if (prop && size == sizeof(*prop))
@ -642,16 +636,9 @@ unsigned int qe_get_num_of_snums(void)
const u32 *prop;
num_of_snums = 28; /* The default number of snum for threads is 28 */
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (!qe) {
/* Older devices trees did not have an "fsl,qe"
* compatible property, so we need to look for
* the QE node by name.
*/
qe = of_find_node_by_type(NULL, "qe");
if (!qe)
return num_of_snums;
}
qe = qe_get_device_node();
if (!qe)
return num_of_snums;
prop = of_get_property(qe, "fsl,qe-num-snums", &size);
if (prop && size == sizeof(*prop)) {