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authorYong Wu <yong.wu@mediatek.com>2019-08-24 11:01:49 +0800
committerJoerg Roedel <jroedel@suse.de>2019-08-30 15:57:26 +0200
commit42d42c76f8d2225aaed55997949d37424906e188 (patch)
tree3e1ab7db11ff1c917335d79cadee61564c55b2f3 /drivers/memory
parentmemory: mtk-smi: Use a general config_port interface (diff)
downloadlinux-dev-42d42c76f8d2225aaed55997949d37424906e188.tar.xz
linux-dev-42d42c76f8d2225aaed55997949d37424906e188.zip
memory: mtk-smi: Use a struct for the platform data for smi-common
Use a struct as the platform special data instead of the enumeration. Also there is a minor change that moving the position of "enum mtk_smi_gen" definition, this is because we expect define "struct mtk_smi_common_plat" before it is referred. This is a preparing patch for mt8183. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Evan Green <evgreen@chromium.org> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/memory')
-rw-r--r--drivers/memory/mtk-smi.c35
1 files changed, 24 insertions, 11 deletions
diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index 14f70cf00210..47df7d04009f 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -41,6 +41,15 @@
#define SMI_LARB_NONSEC_CON(id) (0x380 + ((id) * 4))
#define F_MMU_EN BIT(0)
+enum mtk_smi_gen {
+ MTK_SMI_GEN1,
+ MTK_SMI_GEN2
+};
+
+struct mtk_smi_common_plat {
+ enum mtk_smi_gen gen;
+};
+
struct mtk_smi_larb_gen {
bool need_larbid;
int port_in_larb[MTK_LARB_NR_MAX + 1];
@@ -53,6 +62,8 @@ struct mtk_smi {
struct clk *clk_apb, *clk_smi;
struct clk *clk_async; /*only needed by mt2701*/
void __iomem *smi_ao_base;
+
+ const struct mtk_smi_common_plat *plat;
};
struct mtk_smi_larb { /* larb: local arbiter */
@@ -64,11 +75,6 @@ struct mtk_smi_larb { /* larb: local arbiter */
u32 *mmu;
};
-enum mtk_smi_gen {
- MTK_SMI_GEN1,
- MTK_SMI_GEN2
-};
-
static int mtk_smi_enable(const struct mtk_smi *smi)
{
int ret;
@@ -343,18 +349,26 @@ static struct platform_driver mtk_smi_larb_driver = {
}
};
+static const struct mtk_smi_common_plat mtk_smi_common_gen1 = {
+ .gen = MTK_SMI_GEN1,
+};
+
+static const struct mtk_smi_common_plat mtk_smi_common_gen2 = {
+ .gen = MTK_SMI_GEN2,
+};
+
static const struct of_device_id mtk_smi_common_of_ids[] = {
{
.compatible = "mediatek,mt8173-smi-common",
- .data = (void *)MTK_SMI_GEN2
+ .data = &mtk_smi_common_gen2,
},
{
.compatible = "mediatek,mt2701-smi-common",
- .data = (void *)MTK_SMI_GEN1
+ .data = &mtk_smi_common_gen1,
},
{
.compatible = "mediatek,mt2712-smi-common",
- .data = (void *)MTK_SMI_GEN2
+ .data = &mtk_smi_common_gen2,
},
{}
};
@@ -364,13 +378,13 @@ static int mtk_smi_common_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct mtk_smi *common;
struct resource *res;
- enum mtk_smi_gen smi_gen;
int ret;
common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL);
if (!common)
return -ENOMEM;
common->dev = dev;
+ common->plat = of_device_get_match_data(dev);
common->clk_apb = devm_clk_get(dev, "apb");
if (IS_ERR(common->clk_apb))
@@ -386,8 +400,7 @@ static int mtk_smi_common_probe(struct platform_device *pdev)
* clock into emi clock domain, but for mtk smi gen2, there's no smi ao
* base.
*/
- smi_gen = (enum mtk_smi_gen)of_device_get_match_data(dev);
- if (smi_gen == MTK_SMI_GEN1) {
+ if (common->plat->gen == MTK_SMI_GEN1) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
common->smi_ao_base = devm_ioremap_resource(dev, res);
if (IS_ERR(common->smi_ao_base))