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authorLucas Stach2017-01-13 18:39:43 +0100
committerStephen Boyd2017-01-20 15:22:37 -0800
commitf4a0a6c309ce55a8b199e710e9eeddcb9929ada7 (patch)
tree8a9cd5603e6f7d0ee23980572f46642803d90f1a /drivers/clk
parent3a1ba8ba67b8f642652c418d3836cf29f116b7fe (diff)
clk: imx6: don't restrict LDB mux changes on QuadPlus
The LDB mux/gate layout has been fixed on QuadPlus, so there is no need to restrict the LDB mux changes on this hardware, as the erratum preventing this from working properly is gone. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r--drivers/clk/imx/clk-imx6q.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index 42ffc1c92bab..c07df719b8a3 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -592,15 +592,20 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
imx6q_mmdc_ch1_mask_handshake(base);
- /*
- * The LDB_DI0/1_SEL muxes are registered read-only due to a hardware
- * bug. Set the muxes to the requested values before registering the
- * ldb_di_sel clocks.
- */
- init_ldb_clks(np, base);
+ if (clk_on_imx6qp()) {
+ clk[IMX6QDL_CLK_LDB_DI0_SEL] = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
+ clk[IMX6QDL_CLK_LDB_DI1_SEL] = imx_clk_mux_flags("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT);
+ } else {
+ /*
+ * The LDB_DI0/1_SEL muxes are registered read-only due to a hardware
+ * bug. Set the muxes to the requested values before registering the
+ * ldb_di_sel clocks.
+ */
+ init_ldb_clks(np, base);
- clk[IMX6QDL_CLK_LDB_DI0_SEL] = imx_clk_mux_ldb("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
- clk[IMX6QDL_CLK_LDB_DI1_SEL] = imx_clk_mux_ldb("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
+ clk[IMX6QDL_CLK_LDB_DI0_SEL] = imx_clk_mux_ldb("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
+ clk[IMX6QDL_CLK_LDB_DI1_SEL] = imx_clk_mux_ldb("ldb_di1_sel", base + 0x2c, 12, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels));
+ }
clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL] = imx_clk_mux_flags("ipu1_di0_pre_sel", base + 0x34, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT);
clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL] = imx_clk_mux_flags("ipu1_di1_pre_sel", base + 0x34, 15, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT);
clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL] = imx_clk_mux_flags("ipu2_di0_pre_sel", base + 0x38, 6, 3, ipu_di_pre_sels, ARRAY_SIZE(ipu_di_pre_sels), CLK_SET_RATE_PARENT);