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path: root/drivers/clk/ti/clk-3xxx.c
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2017-12-01clk: ti: omap3: cleanup unnecessary clock aliasesTero Kristo
Most of the clock aliases are no longer needed, only leave the ones required by OMAP timer code in place. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2017-03-08clk: ti: convert to use proper register definition for all accessesTero Kristo
Currently, TI clock driver uses an encapsulated struct that is cast into a void pointer to store all register addresses. This can be considered as rather nasty hackery, and prevents from expanding the register address field also. Instead, replace all the code to use proper struct in place for this, which contains all the previously used data. This patch is rather large as it is touching multiple files, but this can't be split up as we need to avoid any boot breakage. Signed-off-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2016-12-08clk: ti: omap36xx: Work around sprz319 advisory 2.1Richard Watts
The OMAP36xx DPLL5, driving EHCI USB, can be subject to a long-term frequency drift. The frequency drift magnitude depends on the VCO update rate, which is inversely proportional to the PLL divider. The kernel DPLL configuration code results in a high value for the divider, leading to a long term drift high enough to cause USB transmission errors. In the worst case the USB PHY's ULPI interface can stop responding, breaking USB operation completely. This manifests itself on the Beagleboard xM by the LAN9514 reporting 'Cannot enable port 2. Maybe the cable is bad?' in the kernel log. Errata sprz319 advisory 2.1 documents PLL values that minimize the drift. Use them automatically when DPLL5 is used for USB operation, which we detect based on the requested clock rate. The clock framework will still compute the PLL parameters and resulting rate as usual, but the PLL M and N values will then be overridden. This can result in the effective clock rate being slightly different than the rate cached by the clock framework, but won't cause any adverse effect to USB operation. Signed-off-by: Richard Watts <rrw@kynesim.co.uk> [Upported from v3.2 to v4.9] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-02clk: ti: fix dual-registration of uart4_ickBen Dooks
On the OMAP AM3517 platform the uart4_ick gets registered twice, causing any power management to /dev/ttyO3 to fail when trying to wake the device up. This solves the following oops: [] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa09e008 [] PC is at serial_omap_pm+0x48/0x15c [] LR is at _raw_spin_unlock_irqrestore+0x30/0x5c Fixes: aafd900cab87 ("CLK: TI: add omap3 clock init file") Cc: stable@vger.kernel.org Cc: mturquette@baylibre.com Cc: sboyd@codeaurora.org Cc: linux-clk@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-kernel@lists.codethink.co.uk Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-07-28Merge branch 'cleanup-clk-h-includes' into clk-nextStephen Boyd
* cleanup-clk-h-includes: (62 commits) clk: Remove clk.h from clk-provider.h clk: h8300: Remove clk.h and clkdev.h includes clk: at91: Include clk.h and slab.h clk: ti: Switch clk-provider.h include to clk.h clk: pistachio: Include clk.h clk: ingenic: Include clk.h clk: si570: Include clk.h clk: moxart: Include clk.h clk: cdce925: Include clk.h clk: Include clk.h in clk.c clk: zynq: Include clk.h clk: ti: Include clk.h clk: sunxi: Include clk.h and remove unused clkdev.h includes clk: st: Include clk.h clk: qcom: Include clk.h clk: highbank: Include clk.h clk: bcm: Include clk.h clk: versatile: Remove clk.h and clkdev.h includes clk: ux500: Remove clk.h and clkdev.h includes clk: tegra: Properly include clk.h ...
2015-07-28clk: ti: clk-3xxx: Remove unused structuresStephen Boyd
Sparse complains about these structures missing static, but they also don't look to be used. Remove them. drivers/clk/ti/clk-3xxx.c:74:30: warning: symbol 'clkhwops_omap3430es2_ssi_wait' was not declared. Should it be static? drivers/clk/ti/clk-3xxx.c:157:30: warning: symbol 'clkhwops_omap3430es2_hsotgusb_wait' was not declared. Should it be static? Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20clk: ti: Include clk.hStephen Boyd
This clock provider uses the consumer API, so include clk.h explicitly. Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-02clk: ti: am3517: move remaining am3517 clock support code to clock driverTero Kristo
With legacy clock support gone, this is no longer needed under platform, so move it under the clock driver itself. Make some exports be driver internal definitions at the same time. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02clk: ti: omap34xx: move omap34xx clock type support code to clock driverTero Kristo
With the legacy clock data gone, this is no longer needed under platform, so move it under the clock driver itself. Remove unnecessary declarations from the TI clock header also. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02clk: ti: dpll: move omap3 DPLL functionality to clock driverTero Kristo
With the legacy clock support gone, OMAP3 generic DPLL code can now be moved over to the clock driver also. A few un-unused clkoutx2 functions are also removed at the same time. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-06-02clk: ti: move omap2_clk_enable_init_clocks under clock driverTero Kristo
This is no longer used outside clock driver, so move it under the driver and remove the export for it from the global header file. Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-03-24clk: ti: clk-3xxx: Correct McBSP related DT clock definitionsPeter Ujfalusi
In DT boot we do not have devices named as omap-mcbsp.X. Correct the McBSP2/4 ick mapping (they were 2->4 and 4->2). Collect the McBSP clock definition in one location at the same time. Fixes the following warning on boot: [ 0.307739] omap_hwmod: mcbsp2: _wait_target_ready failed: -16 [ 0.307769] omap_hwmod: mcbsp2: cannot be enabled for reset (3) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
2015-01-20clk: ti: Initialize clocks for dm816xTony Lindgren
The clocks on ti81xx are not compatible with omap3. On dm816x the clock source is a FAPLL (Flying Adder PLL), and on dm814x there seems to be an APLL (All Digital PLL). Let's fix up things for dm816x in preparation for adding the FAPLL support. As we already have a dummy ti81xx_dt_clk_init() in place, let's use that for now to avoid adding a dependency to the omap patches. Later on if somebody adds dm814x support we can split the ti81xx_dt_clk_init() clock init function as needed. Cc: Brian Hutchinson <b.hutchman@gmail.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2014-03-13mfd: omap-usb-host: Get clocks based on hardware revisionRoger Quadros
Not all revisions have all the clocks so get the necessary clocks based on hardware revision. This should avoid un-necessary clk_get failure messages that were observed earlier. Also remove the dummy USB host clocks from the OMAP3 clock data. These are no longer expected by the driver. Acked-by: Mike Turquette <mturquette@linaro.org> [OMAP3 CLK data] Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-17CLK: TI: add omap3 clock init fileTero Kristo
clk-3xxx.c now contains the clock init functionality for omap3, including DT clock registration and adding of static clkdev entries. Signed-off-by: Tero Kristo <t-kristo@ti.com> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>