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Message-ID: <1605796707-8378-8-git-send-email-claudiu.beznea@microchip.com>
Date: Thu, 19 Nov 2020 16:38:23 +0200
From: Claudiu Beznea <claudiu.beznea@...rochip.com>
To: <mturquette@...libre.com>, <sboyd@...nel.org>,
<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
<ludovic.desroches@...rochip.com>, <robh+dt@...nel.org>
CC: <linux-clk@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH v5 07/11] clk: at91: sama7g5: remove mck0 from parent list of other clocks
MCK0 is changed at runtime by DVFS. Due to this, since not all IPs
are glitch free aware at MCK0 changes, remove MCK0 from parent list
of other clocks (e.g. generic clock, programmable/system clock, MCKX).
Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
drivers/clk/at91/sama7g5.c | 55 ++++++++++++++++++++++------------------------
1 file changed, 26 insertions(+), 29 deletions(-)
diff --git a/drivers/clk/at91/sama7g5.c b/drivers/clk/at91/sama7g5.c
index d7c2b731ad20..335e9c943c65 100644
--- a/drivers/clk/at91/sama7g5.c
+++ b/drivers/clk/at91/sama7g5.c
@@ -280,7 +280,7 @@ static const struct {
.ep = { "syspll_divpmcck", "ddrpll_divpmcck", "imgpll_divpmcck", },
.ep_mux_table = { 5, 6, 7, },
.ep_count = 3,
- .ep_chg_id = 6, },
+ .ep_chg_id = 5, },
{ .n = "mck4",
.id = 4,
@@ -313,7 +313,7 @@ static const struct {
};
/* Mux table for programmable clocks. */
-static u32 sama7g5_prog_mux_table[] = { 0, 1, 2, 3, 5, 6, 7, 8, 9, 10, };
+static u32 sama7g5_prog_mux_table[] = { 0, 1, 2, 5, 6, 7, 8, 9, 10, };
/**
* Peripheral clock description
@@ -436,7 +436,7 @@ static const struct {
.pp = { "audiopll_divpmcck", },
.pp_mux_table = { 9, },
.pp_count = 1,
- .pp_chg_id = 4, },
+ .pp_chg_id = 3, },
{ .n = "csi_gclk",
.id = 33,
@@ -548,7 +548,7 @@ static const struct {
.pp = { "ethpll_divpmcck", },
.pp_mux_table = { 10, },
.pp_count = 1,
- .pp_chg_id = 4, },
+ .pp_chg_id = 3, },
{ .n = "gmac1_gclk",
.id = 52,
@@ -580,7 +580,7 @@ static const struct {
.pp = { "syspll_divpmcck", "audiopll_divpmcck", },
.pp_mux_table = { 5, 9, },
.pp_count = 2,
- .pp_chg_id = 5, },
+ .pp_chg_id = 4, },
{ .n = "i2smcc1_gclk",
.id = 58,
@@ -588,7 +588,7 @@ static const struct {
.pp = { "syspll_divpmcck", "audiopll_divpmcck", },
.pp_mux_table = { 5, 9, },
.pp_count = 2,
- .pp_chg_id = 5, },
+ .pp_chg_id = 4, },
{ .n = "mcan0_gclk",
.id = 61,
@@ -730,7 +730,7 @@ static const struct {
.pp = { "syspll_divpmcck", "baudpll_divpmcck", },
.pp_mux_table = { 5, 8, },
.pp_count = 2,
- .pp_chg_id = 5, },
+ .pp_chg_id = 4, },
{ .n = "sdmmc1_gclk",
.id = 81,
@@ -738,7 +738,7 @@ static const struct {
.pp = { "syspll_divpmcck", "baudpll_divpmcck", },
.pp_mux_table = { 5, 8, },
.pp_count = 2,
- .pp_chg_id = 5, },
+ .pp_chg_id = 4, },
{ .n = "sdmmc2_gclk",
.id = 82,
@@ -746,7 +746,7 @@ static const struct {
.pp = { "syspll_divpmcck", "baudpll_divpmcck", },
.pp_mux_table = { 5, 8, },
.pp_count = 2,
- .pp_chg_id = 5, },
+ .pp_chg_id = 4, },
{ .n = "spdifrx_gclk",
.id = 84,
@@ -754,7 +754,7 @@ static const struct {
.pp = { "syspll_divpmcck", "audiopll_divpmcck", },
.pp_mux_table = { 5, 9, },
.pp_count = 2,
- .pp_chg_id = 5, },
+ .pp_chg_id = 4, },
{ .n = "spdiftx_gclk",
.id = 85,
@@ -762,7 +762,7 @@ static const struct {
.pp = { "syspll_divpmcck", "audiopll_divpmcck", },
.pp_mux_table = { 5, 9, },
.pp_count = 2,
- .pp_chg_id = 5, },
+ .pp_chg_id = 4, },
{ .n = "tcb0_ch0_gclk",
.id = 88,
@@ -961,9 +961,8 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
parent_names[0] = md_slck_name;
parent_names[1] = td_slck_name;
parent_names[2] = "mainck";
- parent_names[3] = "mck0";
for (i = 0; i < ARRAY_SIZE(sama7g5_mckx); i++) {
- u8 num_parents = 4 + sama7g5_mckx[i].ep_count;
+ u8 num_parents = 3 + sama7g5_mckx[i].ep_count;
u32 *mux_table;
mux_table = kmalloc_array(num_parents, sizeof(*mux_table),
@@ -971,10 +970,10 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
if (!mux_table)
goto err_free;
- SAMA7G5_INIT_TABLE(mux_table, 4);
- SAMA7G5_FILL_TABLE(&mux_table[4], sama7g5_mckx[i].ep_mux_table,
+ SAMA7G5_INIT_TABLE(mux_table, 3);
+ SAMA7G5_FILL_TABLE(&mux_table[3], sama7g5_mckx[i].ep_mux_table,
sama7g5_mckx[i].ep_count);
- SAMA7G5_FILL_TABLE(&parent_names[4], sama7g5_mckx[i].ep,
+ SAMA7G5_FILL_TABLE(&parent_names[3], sama7g5_mckx[i].ep,
sama7g5_mckx[i].ep_count);
hw = at91_clk_sama7g5_register_master(regmap, sama7g5_mckx[i].n,
@@ -997,20 +996,19 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
parent_names[0] = md_slck_name;
parent_names[1] = td_slck_name;
parent_names[2] = "mainck";
- parent_names[3] = "mck0";
- parent_names[4] = "syspll_divpmcck";
- parent_names[5] = "ddrpll_divpmcck";
- parent_names[6] = "imgpll_divpmcck";
- parent_names[7] = "baudpll_divpmcck";
- parent_names[8] = "audiopll_divpmcck";
- parent_names[9] = "ethpll_divpmcck";
+ parent_names[3] = "syspll_divpmcck";
+ parent_names[4] = "ddrpll_divpmcck";
+ parent_names[5] = "imgpll_divpmcck";
+ parent_names[6] = "baudpll_divpmcck";
+ parent_names[7] = "audiopll_divpmcck";
+ parent_names[8] = "ethpll_divpmcck";
for (i = 0; i < 8; i++) {
char name[6];
snprintf(name, sizeof(name), "prog%d", i);
hw = at91_clk_register_programmable(regmap, name, parent_names,
- 10, i,
+ 9, i,
&programmable_layout,
sama7g5_prog_mux_table);
if (IS_ERR(hw))
@@ -1047,9 +1045,8 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
parent_names[0] = md_slck_name;
parent_names[1] = td_slck_name;
parent_names[2] = "mainck";
- parent_names[3] = "mck0";
for (i = 0; i < ARRAY_SIZE(sama7g5_gck); i++) {
- u8 num_parents = 4 + sama7g5_gck[i].pp_count;
+ u8 num_parents = 3 + sama7g5_gck[i].pp_count;
u32 *mux_table;
mux_table = kmalloc_array(num_parents, sizeof(*mux_table),
@@ -1057,10 +1054,10 @@ static void __init sama7g5_pmc_setup(struct device_node *np)
if (!mux_table)
goto err_free;
- SAMA7G5_INIT_TABLE(mux_table, 4);
- SAMA7G5_FILL_TABLE(&mux_table[4], sama7g5_gck[i].pp_mux_table,
+ SAMA7G5_INIT_TABLE(mux_table, 3);
+ SAMA7G5_FILL_TABLE(&mux_table[3], sama7g5_gck[i].pp_mux_table,
sama7g5_gck[i].pp_count);
- SAMA7G5_FILL_TABLE(&parent_names[4], sama7g5_gck[i].pp,
+ SAMA7G5_FILL_TABLE(&parent_names[3], sama7g5_gck[i].pp,
sama7g5_gck[i].pp_count);
hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
--
2.7.4
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