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path: root/drivers/clk/qcom/gcc-ipq806x.c
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2016-11-09clk: qcom: ipq806x: Fix board clk ratesStephen Boyd
The clocks on these boards run at 25 MHz, not 19.2 and 27 like other platforms. Unfortunately I copy/pasted from other similar SoCs but forgot this one is different. Fix it. Fixes: a085f877a882 ("clk: qcom: Move cxo/pxo/xo into dt files") Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-04clk: qcom: Remove CLK_IS_ROOTStephen Boyd
This flag is a no-op now. Remove usage of the flag. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-02-12Revert "clk: qcom: Specify LE device endianness"Stephen Boyd
This reverts commit 329cabcecf94d8d7821e729dda284ba9dec44c87. The commit that caused us to specify LE device endianness here, 29bb45f25ff3 (regmap-mmio: Use native endianness for read/write, 2015-10-29), has been reverted in mainline so now when we specify LE it actively breaks big endian kernels because the byte swapping in regmap-mmio is incorrect. Let's revert this change because it will 1) fix the big endian kernels and 2) be redundant to specify LE because that will become the default soon. Cc: Kevin Hilman <khilman@linaro.org> Tested-by: Kevin Hilman <khilman@baylibre.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-11-20clk: qcom: Specify LE device endiannessStephen Boyd
All these clock controllers are little endian devices, but so far we've been relying on the regmap mmio bus handling this for us without explicitly stating that fact. After commit 4a98da2164cf (regmap-mmio: Use native endianness for read/write, 2015-10-29), the regmap mmio bus will read/write with the __raw_*() IO accessors, instead of using the readl/writel() APIs that do proper byte swapping for little endian devices. So if we're running on a big endian processor and haven't specified the endianness explicitly in the regmap config or in DT, we're going to switch from doing little endian byte swapping to big endian accesses without byte swapping, leading to some confusing results. On my apq8074 dragonboard, this causes the device to fail to boot as we access the clock controller with big endian IO accesses even though the device is little endian. Specify the endianness explicitly so that the regmap core properly byte swaps the accesses for us. Reported-by: Kevin Hilman <khilman@linaro.org> Tested-by: Tyler Baker <tyler.baker@linaro.org> Tested-by: Kevin Hilman <khilman@linaro.org> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-11-16clk: qcom: Move cxo/pxo/xo into dt filesStephen Boyd
Put these clocks into the dt files instead of registering them from C code. This provides a few benefits. It allows us to specify the frequency of these clocks at the board level instead of hard-coding them in the driver. It allows us to insert an RPM clock in between the consumers of the crystals and the actual clock. And finally, it helps us transition the GCC driver to use RPM clocks when that configuration is enabled. Cc: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-08clk: qcom: Drop calls to qcom_cc_remove()Stephen Boyd
Now that qcom_cc_remove() is a nop, drop calls to qcom_cc_remove() and any empty driver remove functions. Cc: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-06clk: qcom: Constify the parent names arraysGeorgi Djakov
Make const both the array and the strings, so they can be moved to .rodata section. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-30clk: qcom: Add support for NSS/GMAC clocks and resetsStephen Boyd
Add the NSS/GMAC clocks and the TCM clock and NSS resets. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-06clk: qcom: Add EBI2 clocks for IPQ806xArchit Taneja
The NAND controller within EBI2 requires EBI2_CLK and EBI2_ALWAYS_ON_CLK clocks. Create structs for these clocks so that they can be used by the NAND controller driver. Add an entry for EBI2_AON_CLK in the gcc-ipq806x DT binding document. Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-03-23clk: qcom: Introduce parent_map tablesGeorgi Djakov
In the current parent mapping code, we can get duplicate or inconsistent indexes, which leads to discrepancy between the number of elements in the array and the number of parents. Until now, this was solved with some reordering but this is not always possible. This patch introduces index tables that are used to define the relations between the PLL source and the hardware mux configuration value. To accomplish this, here we do the following: - Define a parent_map struct to map the relations between PLL source index and register configuration value. - Add a qcom_find_src_index() function for finding the index of a clock matching the specific PLL configuration. - Update the {set,get}_parent RCG functions use the newly introduced parent_map struct. - Convert all existing drivers to the new parent_map tables. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-03-12clk: qcom: Fix i2c frequency tableStephen Boyd
PXO is 25MHz, not 27MHz. Fix the table. Fixes: 24d8fba44af3 "clk: qcom: Add support for IPQ8064's global clock controller (GCC)" Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Reviewed-by: Andy Gross <agross@codeaurora.org> Tested-by: Andy Gross <agross@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-01-27clk: qcom: Add IPQ806X LPASS clock controller (LCC) driverRajendra Nayak
Add an LCC driver for IPQ806x that supports the i2s, S/PDIF, and pcm clocks. Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Kumar Gala <galak@codeaurora.org> Signed-off-by: Josh Cartwright <joshc@codeaurora.org> [sboyd@codeaurora.org: Reworded commit text, added Kconfig select, fleshed out Kconfig description a bit more, added pll4 configuration and reworked probe for it, added muxes, split out dt-binding file] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Kenneth Westfield <kwestfie@codeaurora.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2014-10-20clk: qcom: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-09-26Merge tag 'qcom-clocks-for-3.18' of ↵Mike Turquette
git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into clk-next qcom clock changes for 3.18 Some fixes for the IPQ driver and some code consolidation and refactoring.
2014-09-22clk: qcom: Add IPQ8064 PLL required for USBAndy Gross
This patch adds the PLL0 that is required for the USB clocks to work properly. Signed-off-by: Andy Gross <agross@codeaurora.org> Fixes: 24d8fba44af3 "clk: qcom: Add support for IPQ8064's global clock controller (GCC)" Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-09-02clk: qcom: Fix sdc 144kHz frequency entryStephen Boyd
The pre-divider for the sdc clocks only has 2 bits in it, so we can't possibly divide by anything larger than 4 here. Furthermore, we program the value of ~(n - m) and the n value is larger than 8 bits (max of 256). Replace this entry with 200kHz which is close enough to 144kHz to be usable. Cc: Kumar Gala <galak@codeaurora.org> Cc: Andy Gross <agross@codeaurora.org> Fixes: 24d8fba44af3 "clk: qcom: Add support for IPQ8064's global clock controller (GCC)" Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-07-15clk: qcom: Add support for IPQ8064's global clock controller (GCC)Kumar Gala
Add a driver for the global clock controller found on IPQ8064 based platforms. This should allow most non-multimedia device drivers to probe and control their clocks. This is currently missing clocks for USB HSIC and networking devices. Signed-off-by: Kumar Gala <galak@codeaurora.org> Signed-off-by: Andy Gross <agross@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>