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Message-Id: <1404869766-6311-1-git-send-email-sboyd@codeaurora.org>
Date: Tue, 8 Jul 2014 18:36:06 -0700
From: Stephen Boyd <sboyd@...eaurora.org>
To: Mike Turquette <mturquette@...aro.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Rob Clark <robdclark@...il.com>
Subject: [PATCH v2] clk: qcom: Fix MN frequency tables, parent map, and jpegd
Clocks that don't have a pre-divider don't list any pre-divider
in their frequency tables, but their tables are initialized using
aggregate initializers. Use tagged initializers so we properly
assign the m and n values for each frequency. Furthermore, the
mmcc_pxo_pll8_pll2_pll3 array improperly mapped the second
element to pll2 instead of pll8, causing the clock driver to
recalculate the wrong rate for any clocks using this array along
with a rate that uses pll2. Plus the .num_parents field is 3
instead of 4 so you can't even switch the parent to pll3. Finally
I noticed that the jpegd clock improperly indicates that the
pre-divider width is only 2, when it's actually 4 bits wide.
Fixes: 6d00b56fe "clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)"
Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
---
Changes since v1:
- num_parents for gfx3d should be 4, not 3.
drivers/clk/qcom/mmcc-msm8960.c | 82 +++++++++++++++++++++--------------------
1 file changed, 42 insertions(+), 40 deletions(-)
diff --git a/drivers/clk/qcom/mmcc-msm8960.c b/drivers/clk/qcom/mmcc-msm8960.c
index 12f3c0b64fcd..10d2f135dfba 100644
--- a/drivers/clk/qcom/mmcc-msm8960.c
+++ b/drivers/clk/qcom/mmcc-msm8960.c
@@ -38,6 +38,8 @@
#define P_PLL2 2
#define P_PLL3 3
+#define F_MN(f, s, _m, _n) { .freq = f, .src = s, .m = _m, .n = _n }
+
static u8 mmcc_pxo_pll8_pll2_map[] = {
[P_PXO] = 0,
[P_PLL8] = 2,
@@ -59,8 +61,8 @@ static u8 mmcc_pxo_pll8_pll2_pll3_map[] = {
static const char *mmcc_pxo_pll8_pll2_pll3[] = {
"pxo",
- "pll2",
"pll8_vote",
+ "pll2",
"pll3",
};
@@ -710,18 +712,18 @@ static struct clk_branch csiphy2_timer_clk = {
};
static struct freq_tbl clk_tbl_gfx2d[] = {
- { 27000000, P_PXO, 1, 0 },
- { 48000000, P_PLL8, 1, 8 },
- { 54857000, P_PLL8, 1, 7 },
- { 64000000, P_PLL8, 1, 6 },
- { 76800000, P_PLL8, 1, 5 },
- { 96000000, P_PLL8, 1, 4 },
- { 128000000, P_PLL8, 1, 3 },
- { 145455000, P_PLL2, 2, 11 },
- { 160000000, P_PLL2, 1, 5 },
- { 177778000, P_PLL2, 2, 9 },
- { 200000000, P_PLL2, 1, 4 },
- { 228571000, P_PLL2, 2, 7 },
+ F_MN( 27000000, P_PXO, 1, 0),
+ F_MN( 48000000, P_PLL8, 1, 8),
+ F_MN( 54857000, P_PLL8, 1, 7),
+ F_MN( 64000000, P_PLL8, 1, 6),
+ F_MN( 76800000, P_PLL8, 1, 5),
+ F_MN( 96000000, P_PLL8, 1, 4),
+ F_MN(128000000, P_PLL8, 1, 3),
+ F_MN(145455000, P_PLL2, 2, 11),
+ F_MN(160000000, P_PLL2, 1, 5),
+ F_MN(177778000, P_PLL2, 2, 9),
+ F_MN(200000000, P_PLL2, 1, 4),
+ F_MN(228571000, P_PLL2, 2, 7),
{ }
};
@@ -842,22 +844,22 @@ static struct clk_branch gfx2d1_clk = {
};
static struct freq_tbl clk_tbl_gfx3d[] = {
- { 27000000, P_PXO, 1, 0 },
- { 48000000, P_PLL8, 1, 8 },
- { 54857000, P_PLL8, 1, 7 },
- { 64000000, P_PLL8, 1, 6 },
- { 76800000, P_PLL8, 1, 5 },
- { 96000000, P_PLL8, 1, 4 },
- { 128000000, P_PLL8, 1, 3 },
- { 145455000, P_PLL2, 2, 11 },
- { 160000000, P_PLL2, 1, 5 },
- { 177778000, P_PLL2, 2, 9 },
- { 200000000, P_PLL2, 1, 4 },
- { 228571000, P_PLL2, 2, 7 },
- { 266667000, P_PLL2, 1, 3 },
- { 300000000, P_PLL3, 1, 4 },
- { 320000000, P_PLL2, 2, 5 },
- { 400000000, P_PLL2, 1, 2 },
+ F_MN( 27000000, P_PXO, 1, 0),
+ F_MN( 48000000, P_PLL8, 1, 8),
+ F_MN( 54857000, P_PLL8, 1, 7),
+ F_MN( 64000000, P_PLL8, 1, 6),
+ F_MN( 76800000, P_PLL8, 1, 5),
+ F_MN( 96000000, P_PLL8, 1, 4),
+ F_MN(128000000, P_PLL8, 1, 3),
+ F_MN(145455000, P_PLL2, 2, 11),
+ F_MN(160000000, P_PLL2, 1, 5),
+ F_MN(177778000, P_PLL2, 2, 9),
+ F_MN(200000000, P_PLL2, 1, 4),
+ F_MN(228571000, P_PLL2, 2, 7),
+ F_MN(266667000, P_PLL2, 1, 3),
+ F_MN(300000000, P_PLL3, 1, 4),
+ F_MN(320000000, P_PLL2, 2, 5),
+ F_MN(400000000, P_PLL2, 1, 2),
{ }
};
@@ -897,7 +899,7 @@ static struct clk_dyn_rcg gfx3d_src = {
.hw.init = &(struct clk_init_data){
.name = "gfx3d_src",
.parent_names = mmcc_pxo_pll8_pll2_pll3,
- .num_parents = 3,
+ .num_parents = 4,
.ops = &clk_dyn_rcg_ops,
},
},
@@ -995,7 +997,7 @@ static struct clk_rcg jpegd_src = {
.ns_reg = 0x00ac,
.p = {
.pre_div_shift = 12,
- .pre_div_width = 2,
+ .pre_div_width = 4,
},
.s = {
.src_sel_shift = 0,
@@ -1342,15 +1344,15 @@ static struct clk_branch hdmi_app_clk = {
};
static struct freq_tbl clk_tbl_vcodec[] = {
- { 27000000, P_PXO, 1, 0 },
- { 32000000, P_PLL8, 1, 12 },
- { 48000000, P_PLL8, 1, 8 },
- { 54860000, P_PLL8, 1, 7 },
- { 96000000, P_PLL8, 1, 4 },
- { 133330000, P_PLL2, 1, 6 },
- { 200000000, P_PLL2, 1, 4 },
- { 228570000, P_PLL2, 2, 7 },
- { 266670000, P_PLL2, 1, 3 },
+ F_MN( 27000000, P_PXO, 1, 0),
+ F_MN( 32000000, P_PLL8, 1, 12),
+ F_MN( 48000000, P_PLL8, 1, 8),
+ F_MN( 54860000, P_PLL8, 1, 7),
+ F_MN( 96000000, P_PLL8, 1, 4),
+ F_MN(133330000, P_PLL2, 1, 6),
+ F_MN(200000000, P_PLL2, 1, 4),
+ F_MN(228570000, P_PLL2, 2, 7),
+ F_MN(266670000, P_PLL2, 1, 3),
{ }
};
--
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