| Message ID | 1379310497-12362-2-git-send-email-xobs@kosagi.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, Sep 16, 2013 at 05:48:15AM +0000, Sean Cross wrote: > The i.MX6 has two general-purpose LVDS clocks that can be driven > from a variety of sources. This patch adds a mux and a gate for > both of these clocks. > > Signed-off-by: Sean Cross <xobs@kosagi.com> > --- > .../devicetree/bindings/clock/imx6q-clock.txt | 4 ++++ > arch/arm/mach-imx/clk-imx6q.c | 22 +++++++++++++++++++- > 2 files changed, 25 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt > index 5a90a72..35e82c7 100644 > --- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt > +++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt > @@ -215,6 +215,10 @@ clocks and IDs. > cko2 200 > cko 201 > vdoa 202 > + lvds1_sel 203 > + lvds2_sel 204 > + lvds1_gate 205 > + lvds2_gate 206 > > Examples: > > diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c > index 9181a24..971356b 100644 > --- a/arch/arm/mach-imx/clk-imx6q.c > +++ b/arch/arm/mach-imx/clk-imx6q.c > @@ -217,6 +217,11 @@ static const char *cko2_sels[] = { > "uart_serial", "spdif", "asrc", "hsi_tx", > }; > static const char *cko_sels[] = { "cko1", "cko2", }; > +static const char *lvds_sels[] = { > + "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", > + "pll4_audio", "pll5_video", "pll8_mlb", "enet_ref", > + "pcie_ref", "sata_ref", > +}; > > enum mx6q_clks { > dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m, > @@ -251,7 +256,8 @@ enum mx6q_clks { > ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5, > sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate, > usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow, > - spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, clk_max > + spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, > + lvds1_sel, lvds2_sel, lvds1_gate, lvds2_gate, clk_max > }; > > static struct clk *clk[clk_max]; > @@ -342,6 +348,18 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) > base + 0xe0, 0, 2, 0, clk_enet_ref_table, > &imx_ccm_lock); > > + clk[lvds1_sel] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); > + clk[lvds2_sel] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); > + > + /* > + * lvds1_gate and lvds2_gate are pseudo-gates. Both can be > + * independently configured as clock inputs or outputs. We treat > + * the "output_enable" bit as a gate, even though it's really just > + * enabling clock output. > + */ > + clk[lvds1_gate] = imx_clk_gate("lvds1_gate", "dummy", base + 0x160, 10); > + clk[lvds2_gate] = imx_clk_gate("lvds2_gate", "dummy", base + 0x160, 11); > + > /* name parent_name reg idx */ > clk[pll2_pfd0_352m] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus", base + 0x100, 0); > clk[pll2_pfd1_594m] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus", base + 0x100, 1); > @@ -569,6 +587,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) > clk_register_clkdev(clk[cko1_sel], "cko1_sel", NULL); > clk_register_clkdev(clk[ahb], "ahb", NULL); > clk_register_clkdev(clk[cko1], "cko1", NULL); > + clk_register_clkdev(clk[lvds1_gate], "lvds1_gate", NULL); > + clk_register_clkdev(clk[lvds2_gate], "lvds2_gate", NULL); Again, I do not think you need these clk lookups. Shawn > clk_register_clkdev(clk[arm], NULL, "cpu0"); > clk_register_clkdev(clk[pll4_post_div], "pll4_post_div", NULL); > clk_register_clkdev(clk[pll4_audio], "pll4_audio", NULL); > -- > 1.7.9.5 >
diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt index 5a90a72..35e82c7 100644 --- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt @@ -215,6 +215,10 @@ clocks and IDs. cko2 200 cko 201 vdoa 202 + lvds1_sel 203 + lvds2_sel 204 + lvds1_gate 205 + lvds2_gate 206 Examples: diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 9181a24..971356b 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -217,6 +217,11 @@ static const char *cko2_sels[] = { "uart_serial", "spdif", "asrc", "hsi_tx", }; static const char *cko_sels[] = { "cko1", "cko2", }; +static const char *lvds_sels[] = { + "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", + "pll4_audio", "pll5_video", "pll8_mlb", "enet_ref", + "pcie_ref", "sata_ref", +}; enum mx6q_clks { dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m, @@ -251,7 +256,8 @@ enum mx6q_clks { ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5, sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate, usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow, - spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, clk_max + spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, + lvds1_sel, lvds2_sel, lvds1_gate, lvds2_gate, clk_max }; static struct clk *clk[clk_max]; @@ -342,6 +348,18 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) base + 0xe0, 0, 2, 0, clk_enet_ref_table, &imx_ccm_lock); + clk[lvds1_sel] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + clk[lvds2_sel] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + + /* + * lvds1_gate and lvds2_gate are pseudo-gates. Both can be + * independently configured as clock inputs or outputs. We treat + * the "output_enable" bit as a gate, even though it's really just + * enabling clock output. + */ + clk[lvds1_gate] = imx_clk_gate("lvds1_gate", "dummy", base + 0x160, 10); + clk[lvds2_gate] = imx_clk_gate("lvds2_gate", "dummy", base + 0x160, 11); + /* name parent_name reg idx */ clk[pll2_pfd0_352m] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus", base + 0x100, 0); clk[pll2_pfd1_594m] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus", base + 0x100, 1); @@ -569,6 +587,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) clk_register_clkdev(clk[cko1_sel], "cko1_sel", NULL); clk_register_clkdev(clk[ahb], "ahb", NULL); clk_register_clkdev(clk[cko1], "cko1", NULL); + clk_register_clkdev(clk[lvds1_gate], "lvds1_gate", NULL); + clk_register_clkdev(clk[lvds2_gate], "lvds2_gate", NULL); clk_register_clkdev(clk[arm], NULL, "cpu0"); clk_register_clkdev(clk[pll4_post_div], "pll4_post_div", NULL); clk_register_clkdev(clk[pll4_audio], "pll4_audio", NULL);
The i.MX6 has two general-purpose LVDS clocks that can be driven from a variety of sources. This patch adds a mux and a gate for both of these clocks. Signed-off-by: Sean Cross <xobs@kosagi.com> --- .../devicetree/bindings/clock/imx6q-clock.txt | 4 ++++ arch/arm/mach-imx/clk-imx6q.c | 22 +++++++++++++++++++- 2 files changed, 25 insertions(+), 1 deletion(-)