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authorStephen Boyd <sboyd@codeaurora.org>2017-11-14 19:07:42 +0100
committerStephen Boyd <sboyd@codeaurora.org>2017-11-14 19:07:42 +0100
commit8f620400861a313cfb59a43651a92f815de0da93 (patch)
treecef912db5cf7b7c17bb6e6d40ca51fa8cfe6575d /drivers/clk
parentMerge branch 'clk-at91' into clk-next (diff)
parentclk: qcom: clk-smd-rpm: add msm8996 rpmclks (diff)
downloadlinux-8f620400861a313cfb59a43651a92f815de0da93.tar.xz
linux-8f620400861a313cfb59a43651a92f815de0da93.zip
Merge branch 'clk-qcom' into clk-next
* clk-qcom: clk: qcom: clk-smd-rpm: add msm8996 rpmclks clk: qcom: Implement RPM clocks for MSM8660/APQ8060 clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC clk: qcom: Elaborate on "active" clocks in the RPM clock bindings clk: qcom: Remove unused RCG ops
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/qcom/clk-rcg.h3
-rw-r--r--drivers/clk/qcom/clk-rcg2.c79
-rw-r--r--drivers/clk/qcom/clk-rpm.c93
-rw-r--r--drivers/clk/qcom/clk-smd-rpm.c82
4 files changed, 175 insertions, 82 deletions
diff --git a/drivers/clk/qcom/clk-rcg.h b/drivers/clk/qcom/clk-rcg.h
index 1b3e8d265bdb..a2495457e564 100644
--- a/drivers/clk/qcom/clk-rcg.h
+++ b/drivers/clk/qcom/clk-rcg.h
@@ -156,7 +156,6 @@ extern const struct clk_ops clk_dyn_rcg_ops;
* @hid_width: number of bits in half integer divider
* @parent_map: map from software's parent index to hardware's src_sel field
* @freq_tbl: frequency table
- * @current_freq: last cached frequency when using branches with shared RCGs
* @clkr: regmap clock handle
*
*/
@@ -166,7 +165,6 @@ struct clk_rcg2 {
u8 hid_width;
const struct parent_map *parent_map;
const struct freq_tbl *freq_tbl;
- unsigned long current_freq;
struct clk_regmap clkr;
};
@@ -174,7 +172,6 @@ struct clk_rcg2 {
extern const struct clk_ops clk_rcg2_ops;
extern const struct clk_ops clk_rcg2_floor_ops;
-extern const struct clk_ops clk_rcg2_shared_ops;
extern const struct clk_ops clk_edp_pixel_ops;
extern const struct clk_ops clk_byte_ops;
extern const struct clk_ops clk_byte2_ops;
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c
index 1a0985ae20d2..bbeaf9c09dbb 100644
--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -358,85 +358,6 @@ const struct clk_ops clk_rcg2_floor_ops = {
};
EXPORT_SYMBOL_GPL(clk_rcg2_floor_ops);
-static int clk_rcg2_shared_force_enable(struct clk_hw *hw, unsigned long rate)
-{
- struct clk_rcg2 *rcg = to_clk_rcg2(hw);
- const char *name = clk_hw_get_name(hw);
- int ret, count;
-
- /* force enable RCG */
- ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + CMD_REG,
- CMD_ROOT_EN, CMD_ROOT_EN);
- if (ret)
- return ret;
-
- /* wait for RCG to turn ON */
- for (count = 500; count > 0; count--) {
- ret = clk_rcg2_is_enabled(hw);
- if (ret)
- break;
- udelay(1);
- }
- if (!count)
- pr_err("%s: RCG did not turn on\n", name);
-
- /* set clock rate */
- ret = __clk_rcg2_set_rate(hw, rate, CEIL);
- if (ret)
- return ret;
-
- /* clear force enable RCG */
- return regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + CMD_REG,
- CMD_ROOT_EN, 0);
-}
-
-static int clk_rcg2_shared_set_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long parent_rate)
-{
- struct clk_rcg2 *rcg = to_clk_rcg2(hw);
-
- /* cache the rate */
- rcg->current_freq = rate;
-
- if (!__clk_is_enabled(hw->clk))
- return 0;
-
- return clk_rcg2_shared_force_enable(hw, rcg->current_freq);
-}
-
-static unsigned long
-clk_rcg2_shared_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
-{
- struct clk_rcg2 *rcg = to_clk_rcg2(hw);
-
- return rcg->current_freq = clk_rcg2_recalc_rate(hw, parent_rate);
-}
-
-static int clk_rcg2_shared_enable(struct clk_hw *hw)
-{
- struct clk_rcg2 *rcg = to_clk_rcg2(hw);
-
- return clk_rcg2_shared_force_enable(hw, rcg->current_freq);
-}
-
-static void clk_rcg2_shared_disable(struct clk_hw *hw)
-{
- struct clk_rcg2 *rcg = to_clk_rcg2(hw);
-
- /* switch to XO, which is the lowest entry in the freq table */
- clk_rcg2_shared_set_rate(hw, rcg->freq_tbl[0].freq, 0);
-}
-
-const struct clk_ops clk_rcg2_shared_ops = {
- .enable = clk_rcg2_shared_enable,
- .disable = clk_rcg2_shared_disable,
- .get_parent = clk_rcg2_get_parent,
- .recalc_rate = clk_rcg2_shared_recalc_rate,
- .determine_rate = clk_rcg2_determine_rate,
- .set_rate = clk_rcg2_shared_set_rate,
-};
-EXPORT_SYMBOL_GPL(clk_rcg2_shared_ops);
-
struct frac_entry {
int num;
int den;
diff --git a/drivers/clk/qcom/clk-rpm.c b/drivers/clk/qcom/clk-rpm.c
index df3e5fe8442a..c60f61b10c7f 100644
--- a/drivers/clk/qcom/clk-rpm.c
+++ b/drivers/clk/qcom/clk-rpm.c
@@ -56,6 +56,18 @@
}, \
}
+#define DEFINE_CLK_RPM_FIXED(_platform, _name, _active, r_id, r) \
+ static struct clk_rpm _platform##_##_name = { \
+ .rpm_clk_id = (r_id), \
+ .rate = (r), \
+ .hw.init = &(struct clk_init_data){ \
+ .ops = &clk_rpm_fixed_ops, \
+ .name = #_name, \
+ .parent_names = (const char *[]){ "pxo" }, \
+ .num_parents = 1, \
+ }, \
+ }
+
#define DEFINE_CLK_RPM_PXO_BRANCH(_platform, _name, _active, r_id, r) \
static struct clk_rpm _platform##_##_active; \
static struct clk_rpm _platform##_##_name = { \
@@ -143,6 +155,13 @@ static int clk_rpm_handoff(struct clk_rpm *r)
int ret;
u32 value = INT_MAX;
+ /*
+ * The vendor tree simply reads the status for this
+ * RPM clock.
+ */
+ if (r->rpm_clk_id == QCOM_RPM_PLL_4)
+ return 0;
+
ret = qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE,
r->rpm_clk_id, &value, 1);
if (ret)
@@ -269,6 +288,32 @@ out:
mutex_unlock(&rpm_clk_lock);
}
+static int clk_rpm_fixed_prepare(struct clk_hw *hw)
+{
+ struct clk_rpm *r = to_clk_rpm(hw);
+ u32 value = 1;
+ int ret;
+
+ ret = qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE,
+ r->rpm_clk_id, &value, 1);
+ if (!ret)
+ r->enabled = true;
+
+ return ret;
+}
+
+static void clk_rpm_fixed_unprepare(struct clk_hw *hw)
+{
+ struct clk_rpm *r = to_clk_rpm(hw);
+ u32 value = 0;
+ int ret;
+
+ ret = qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE,
+ r->rpm_clk_id, &value, 1);
+ if (!ret)
+ r->enabled = false;
+}
+
static int clk_rpm_set_rate(struct clk_hw *hw,
unsigned long rate, unsigned long parent_rate)
{
@@ -333,6 +378,13 @@ static unsigned long clk_rpm_recalc_rate(struct clk_hw *hw,
return r->rate;
}
+static const struct clk_ops clk_rpm_fixed_ops = {
+ .prepare = clk_rpm_fixed_prepare,
+ .unprepare = clk_rpm_fixed_unprepare,
+ .round_rate = clk_rpm_round_rate,
+ .recalc_rate = clk_rpm_recalc_rate,
+};
+
static const struct clk_ops clk_rpm_ops = {
.prepare = clk_rpm_prepare,
.unprepare = clk_rpm_unprepare,
@@ -348,6 +400,45 @@ static const struct clk_ops clk_rpm_branch_ops = {
.recalc_rate = clk_rpm_recalc_rate,
};
+/* MSM8660/APQ8060 */
+DEFINE_CLK_RPM(msm8660, afab_clk, afab_a_clk, QCOM_RPM_APPS_FABRIC_CLK);
+DEFINE_CLK_RPM(msm8660, sfab_clk, sfab_a_clk, QCOM_RPM_SYS_FABRIC_CLK);
+DEFINE_CLK_RPM(msm8660, mmfab_clk, mmfab_a_clk, QCOM_RPM_MM_FABRIC_CLK);
+DEFINE_CLK_RPM(msm8660, daytona_clk, daytona_a_clk, QCOM_RPM_DAYTONA_FABRIC_CLK);
+DEFINE_CLK_RPM(msm8660, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK);
+DEFINE_CLK_RPM(msm8660, cfpb_clk, cfpb_a_clk, QCOM_RPM_CFPB_CLK);
+DEFINE_CLK_RPM(msm8660, mmfpb_clk, mmfpb_a_clk, QCOM_RPM_MMFPB_CLK);
+DEFINE_CLK_RPM(msm8660, smi_clk, smi_a_clk, QCOM_RPM_SMI_CLK);
+DEFINE_CLK_RPM(msm8660, ebi1_clk, ebi1_a_clk, QCOM_RPM_EBI1_CLK);
+DEFINE_CLK_RPM_FIXED(msm8660, pll4_clk, pll4_a_clk, QCOM_RPM_PLL_4, 540672000);
+
+static struct clk_rpm *msm8660_clks[] = {
+ [RPM_APPS_FABRIC_CLK] = &msm8660_afab_clk,
+ [RPM_APPS_FABRIC_A_CLK] = &msm8660_afab_a_clk,
+ [RPM_SYS_FABRIC_CLK] = &msm8660_sfab_clk,
+ [RPM_SYS_FABRIC_A_CLK] = &msm8660_sfab_a_clk,
+ [RPM_MM_FABRIC_CLK] = &msm8660_mmfab_clk,
+ [RPM_MM_FABRIC_A_CLK] = &msm8660_mmfab_a_clk,
+ [RPM_DAYTONA_FABRIC_CLK] = &msm8660_daytona_clk,
+ [RPM_DAYTONA_FABRIC_A_CLK] = &msm8660_daytona_a_clk,
+ [RPM_SFPB_CLK] = &msm8660_sfpb_clk,
+ [RPM_SFPB_A_CLK] = &msm8660_sfpb_a_clk,
+ [RPM_CFPB_CLK] = &msm8660_cfpb_clk,
+ [RPM_CFPB_A_CLK] = &msm8660_cfpb_a_clk,
+ [RPM_MMFPB_CLK] = &msm8660_mmfpb_clk,
+ [RPM_MMFPB_A_CLK] = &msm8660_mmfpb_a_clk,
+ [RPM_SMI_CLK] = &msm8660_smi_clk,
+ [RPM_SMI_A_CLK] = &msm8660_smi_a_clk,
+ [RPM_EBI1_CLK] = &msm8660_ebi1_clk,
+ [RPM_EBI1_A_CLK] = &msm8660_ebi1_a_clk,
+ [RPM_PLL4_CLK] = &msm8660_pll4_clk,
+};
+
+static const struct rpm_clk_desc rpm_clk_msm8660 = {
+ .clks = msm8660_clks,
+ .num_clks = ARRAY_SIZE(msm8660_clks),
+};
+
/* apq8064 */
DEFINE_CLK_RPM(apq8064, afab_clk, afab_a_clk, QCOM_RPM_APPS_FABRIC_CLK);
DEFINE_CLK_RPM(apq8064, cfpb_clk, cfpb_a_clk, QCOM_RPM_CFPB_CLK);
@@ -386,6 +477,8 @@ static const struct rpm_clk_desc rpm_clk_apq8064 = {
};
static const struct of_device_id rpm_clk_match_table[] = {
+ { .compatible = "qcom,rpmcc-msm8660", .data = &rpm_clk_msm8660 },
+ { .compatible = "qcom,rpmcc-apq8060", .data = &rpm_clk_msm8660 },
{ .compatible = "qcom,rpmcc-apq8064", .data = &rpm_clk_apq8064 },
{ }
};
diff --git a/drivers/clk/qcom/clk-smd-rpm.c b/drivers/clk/qcom/clk-smd-rpm.c
index cc03d5508627..c26d9007bfc4 100644
--- a/drivers/clk/qcom/clk-smd-rpm.c
+++ b/drivers/clk/qcom/clk-smd-rpm.c
@@ -530,9 +530,91 @@ static const struct rpm_smd_clk_desc rpm_clk_msm8974 = {
.clks = msm8974_clks,
.num_clks = ARRAY_SIZE(msm8974_clks),
};
+
+/* msm8996 */
+DEFINE_CLK_SMD_RPM(msm8996, pcnoc_clk, pcnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0);
+DEFINE_CLK_SMD_RPM(msm8996, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1);
+DEFINE_CLK_SMD_RPM(msm8996, cnoc_clk, cnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 2);
+DEFINE_CLK_SMD_RPM(msm8996, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0);
+DEFINE_CLK_SMD_RPM(msm8996, mmssnoc_axi_rpm_clk, mmssnoc_axi_rpm_a_clk,
+ QCOM_SMD_RPM_MMAXI_CLK, 0);
+DEFINE_CLK_SMD_RPM(msm8996, ipa_clk, ipa_a_clk, QCOM_SMD_RPM_IPA_CLK, 0);
+DEFINE_CLK_SMD_RPM(msm8996, ce1_clk, ce1_a_clk, QCOM_SMD_RPM_CE_CLK, 0);
+DEFINE_CLK_SMD_RPM_BRANCH(msm8996, aggre1_noc_clk, aggre1_noc_a_clk,
+ QCOM_SMD_RPM_AGGR_CLK, 1, 1000);
+DEFINE_CLK_SMD_RPM_BRANCH(msm8996, aggre2_noc_clk, aggre2_noc_a_clk,
+ QCOM_SMD_RPM_AGGR_CLK, 2, 1000);
+DEFINE_CLK_SMD_RPM_QDSS(msm8996, qdss_clk, qdss_a_clk,
+ QCOM_SMD_RPM_MISC_CLK, 1);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, bb_clk1, bb_clk1_a, 1);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, bb_clk2, bb_clk2_a, 2);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, rf_clk1, rf_clk1_a, 4);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, rf_clk2, rf_clk2_a, 5);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, ln_bb_clk, ln_bb_a_clk, 8);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk1, div_clk1_a, 0xb);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk2, div_clk2_a, 0xc);
+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk3, div_clk3_a, 0xd);
+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, bb_clk1_pin, bb_clk1_a_pin, 1);
+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, bb_clk2_pin, bb_clk2_a_pin, 2);
+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, rf_clk1_pin, rf_clk1_a_pin, 4);
+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, rf_clk2_pin, rf_clk2_a_pin, 5);
+
+static struct clk_smd_rpm *msm8996_clks[] = {
+ [RPM_SMD_PCNOC_CLK] = &msm8996_pcnoc_clk,
+ [RPM_SMD_PCNOC_A_CLK] = &msm8996_pcnoc_a_clk,
+ [RPM_SMD_SNOC_CLK] = &msm8996_snoc_clk,
+ [RPM_SMD_SNOC_A_CLK] = &msm8996_snoc_a_clk,
+ [RPM_SMD_CNOC_CLK] = &msm8996_cnoc_clk,
+ [RPM_SMD_CNOC_A_CLK] = &msm8996_cnoc_a_clk,
+ [RPM_SMD_BIMC_CLK] = &msm8996_bimc_clk,
+ [RPM_SMD_BIMC_A_CLK] = &msm8996_bimc_a_clk,
+ [RPM_SMD_MMAXI_CLK] = &msm8996_mmssnoc_axi_rpm_clk,
+ [RPM_SMD_MMAXI_A_CLK] = &msm8996_mmssnoc_axi_rpm_a_clk,
+ [RPM_SMD_IPA_CLK] = &msm8996_ipa_clk,
+ [RPM_SMD_IPA_A_CLK] = &msm8996_ipa_a_clk,
+ [RPM_SMD_CE1_CLK] = &msm8996_ce1_clk,
+ [RPM_SMD_CE1_A_CLK] = &msm8996_ce1_a_clk,
+ [RPM_SMD_AGGR1_NOC_CLK] = &msm8996_aggre1_noc_clk,
+ [RPM_SMD_AGGR1_NOC_A_CLK] = &msm8996_aggre1_noc_a_clk,
+ [RPM_SMD_AGGR2_NOC_CLK] = &msm8996_aggre2_noc_clk,
+ [RPM_SMD_AGGR2_NOC_A_CLK] = &msm8996_aggre2_noc_a_clk,
+ [RPM_SMD_QDSS_CLK] = &msm8996_qdss_clk,
+ [RPM_SMD_QDSS_A_CLK] = &msm8996_qdss_a_clk,
+ [RPM_SMD_BB_CLK1] = &msm8996_bb_clk1,
+ [RPM_SMD_BB_CLK1_A] = &msm8996_bb_clk1_a,
+ [RPM_SMD_BB_CLK2] = &msm8996_bb_clk2,
+ [RPM_SMD_BB_CLK2_A] = &msm8996_bb_clk2_a,
+ [RPM_SMD_RF_CLK1] = &msm8996_rf_clk1,
+ [RPM_SMD_RF_CLK1_A] = &msm8996_rf_clk1_a,
+ [RPM_SMD_RF_CLK2] = &msm8996_rf_clk2,
+ [RPM_SMD_RF_CLK2_A] = &msm8996_rf_clk2_a,
+ [RPM_SMD_LN_BB_CLK] = &msm8996_ln_bb_clk,
+ [RPM_SMD_LN_BB_A_CLK] = &msm8996_ln_bb_a_clk,
+ [RPM_SMD_DIV_CLK1] = &msm8996_div_clk1,
+ [RPM_SMD_DIV_A_CLK1] = &msm8996_div_clk1_a,
+ [RPM_SMD_DIV_CLK2] = &msm8996_div_clk2,
+ [RPM_SMD_DIV_A_CLK2] = &msm8996_div_clk2_a,
+ [RPM_SMD_DIV_CLK3] = &msm8996_div_clk3,
+ [RPM_SMD_DIV_A_CLK3] = &msm8996_div_clk3_a,
+ [RPM_SMD_BB_CLK1_PIN] = &msm8996_bb_clk1_pin,
+ [RPM_SMD_BB_CLK1_A_PIN] = &msm8996_bb_clk1_a_pin,
+ [RPM_SMD_BB_CLK2_PIN] = &msm8996_bb_clk2_pin,
+ [RPM_SMD_BB_CLK2_A_PIN] = &msm8996_bb_clk2_a_pin,
+ [RPM_SMD_RF_CLK1_PIN] = &msm8996_rf_clk1_pin,
+ [RPM_SMD_RF_CLK1_A_PIN] = &msm8996_rf_clk1_a_pin,
+ [RPM_SMD_RF_CLK2_PIN] = &msm8996_rf_clk2_pin,
+ [RPM_SMD_RF_CLK2_A_PIN] = &msm8996_rf_clk2_a_pin,
+};
+
+static const struct rpm_smd_clk_desc rpm_clk_msm8996 = {
+ .clks = msm8996_clks,
+ .num_clks = ARRAY_SIZE(msm8996_clks),
+};
+
static const struct of_device_id rpm_smd_clk_match_table[] = {
{ .compatible = "qcom,rpmcc-msm8916", .data = &rpm_clk_msm8916 },
{ .compatible = "qcom,rpmcc-msm8974", .data = &rpm_clk_msm8974 },
+ { .compatible = "qcom,rpmcc-msm8996", .data = &rpm_clk_msm8996 },
{ }
};
MODULE_DEVICE_TABLE(of, rpm_smd_clk_match_table);