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authorTony Lindgren2019-05-20 17:33:03 +0200
committerTony Lindgren2019-05-20 17:33:03 +0200
commit4ee23cd76c0ce8622976b3da0e2bc89e6d94f6d4 (patch)
treee5b450b8531cc34d4eb5a4e50c9dee064c840ef7
parentMerge branch 'fixes-dra7' into fixes (diff)
parentbus: ti-sysc: Handle devices with no control registers (diff)
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Merge branch 'omap-for-v5.2/ti-sysc' into fixes
-rw-r--r--arch/arm/boot/dts/am33xx-l4.dtsi14
-rw-r--r--arch/arm/boot/dts/am437x-l4.dtsi4
-rw-r--r--drivers/bus/ti-sysc.c23
3 files changed, 17 insertions, 24 deletions
diff --git a/arch/arm/boot/dts/am33xx-l4.dtsi b/arch/arm/boot/dts/am33xx-l4.dtsi
index ca6d9f02a800..ced1a19d5f89 100644
--- a/arch/arm/boot/dts/am33xx-l4.dtsi
+++ b/arch/arm/boot/dts/am33xx-l4.dtsi
@@ -1759,11 +1759,10 @@
target-module@cc000 { /* 0x481cc000, ap 60 46.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can0";
- reg = <0xcc000 0x4>;
- reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
- clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>;
- clock-names = "fck";
+ clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>,
+ <&dcan0_fck>;
+ clock-names = "fck", "osc";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0xcc000 0x2000>;
@@ -1782,11 +1781,10 @@
target-module@d0000 { /* 0x481d0000, ap 62 42.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can1";
- reg = <0xd0000 0x4>;
- reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
- clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>;
- clock-names = "fck";
+ clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>,
+ <&dcan1_fck>;
+ clock-names = "fck", "osc";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0xd0000 0x2000>;
diff --git a/arch/arm/boot/dts/am437x-l4.dtsi b/arch/arm/boot/dts/am437x-l4.dtsi
index 85c6f4ff1824..989cb60b9029 100644
--- a/arch/arm/boot/dts/am437x-l4.dtsi
+++ b/arch/arm/boot/dts/am437x-l4.dtsi
@@ -1575,8 +1575,6 @@
target-module@cc000 { /* 0x481cc000, ap 50 46.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can0";
- reg = <0xcc000 0x4>;
- reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM4_L4LS_D_CAN0_CLKCTRL 0>;
clock-names = "fck";
@@ -1596,8 +1594,6 @@
target-module@d0000 { /* 0x481d0000, ap 52 3a.0 */
compatible = "ti,sysc-omap4", "ti,sysc";
ti,hwmods = "d_can1";
- reg = <0xd0000 0x4>;
- reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM4_L4LS_D_CAN1_CLKCTRL 0>;
clock-names = "fck";
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 308475ed4b32..b72741668c92 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -660,12 +660,6 @@ static int sysc_check_registers(struct sysc *ddata)
nr_regs++;
}
- if (nr_regs < 1) {
- dev_err(ddata->dev, "missing registers\n");
-
- return -EINVAL;
- }
-
if (nr_matches > nr_regs) {
dev_err(ddata->dev, "overlapping registers: (%i/%i)",
nr_regs, nr_matches);
@@ -691,12 +685,18 @@ static int sysc_ioremap(struct sysc *ddata)
{
int size;
- size = max3(ddata->offsets[SYSC_REVISION],
- ddata->offsets[SYSC_SYSCONFIG],
- ddata->offsets[SYSC_SYSSTATUS]);
+ if (ddata->offsets[SYSC_REVISION] < 0 &&
+ ddata->offsets[SYSC_SYSCONFIG] < 0 &&
+ ddata->offsets[SYSC_SYSSTATUS] < 0) {
+ size = ddata->module_size;
+ } else {
+ size = max3(ddata->offsets[SYSC_REVISION],
+ ddata->offsets[SYSC_SYSCONFIG],
+ ddata->offsets[SYSC_SYSSTATUS]);
- if (size < 0 || (size + sizeof(u32)) > ddata->module_size)
- return -EINVAL;
+ if ((size + sizeof(u32)) > ddata->module_size)
+ return -EINVAL;
+ }
ddata->module_va = devm_ioremap(ddata->dev,
ddata->module_pa,
@@ -1128,7 +1128,6 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
SYSC_QUIRK("cpgmac", 0, 0x1200, 0x1208, 0x1204, 0x4edb1902,
0xffff00f0, 0),
SYSC_QUIRK("dcan", 0, 0, -1, -1, 0xffffffff, 0xffffffff, 0),
- SYSC_QUIRK("dcan", 0, 0, -1, -1, 0x00001401, 0xffffffff, 0),
SYSC_QUIRK("dmic", 0, 0, 0x10, -1, 0x50010000, 0xffffffff, 0),
SYSC_QUIRK("dwc3", 0, 0, 0x10, -1, 0x500a0200, 0xffffffff, 0),
SYSC_QUIRK("epwmss", 0, 0, 0x4, -1, 0x47400001, 0xffffffff, 0),