Merge tag 'clk-renesas-for-v4.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull Renesas clk driver updates from Geert Uytterhoeven:

  - Add support for the Clock Pulse Generator / Module Standby and
    Software Reset module on revision ES2.0 of the R-Car H3 SoC, which
    differs from ES1.x in some areas.
  - Add IMR clocks for R-Car H3 and M3-W,
  - Add workaround for PLL0/2/4 errata on R-Car H3 ES1.0,
  - Small fixes and cleanups.

* tag 'clk-renesas-for-v4.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: rcar-gen3-cpg: Add support for RCLK on R-Car H3 ES2.0
  clk: renesas: r8a7795: Add support for R-Car H3 ES2.0
  clk: renesas: Add r8a7795 ES2.0 CPG Core Clock Definitions
  clk: renesas: cpg-mssr: Add support for fixing up clock tables
  clk: renesas: rcar-gen3: Add workaround for PLL0/2/4 errata on H3 ES1.0
  clk: renesas: rcar-gen3-cpg: Pass mode pins to rcar_gen3_cpg_init()
  clk: renesas: r8a7796: Reformat core clock table
  clk: renesas: r8a7795: Reformat core clock table
  clk: renesas: r8a7796: Correct name of watchdog clock
  clk: renesas: r8a7795: Correct name of watchdog clock
  clk: renesas: r8a7795: Correct parent clock and sort order for Audio DMACs
  clk: renesas: r8a7796: Add IMR clocks
  clk: renesas: r8a7795: Add IMR clocks

* clk-fixes:
  clk: stm32f4: fix: exclude values 0 and 1 for PLLQ

0000: PLLQ = 0, wrong configuration
0001: PLLQ = 1, wrong configuration
...
0010: PLLQ = 2
0011: PLLQ = 3
0100: PLLQ = 4
...
1111: PLLQ = 1

Use divider table to exclude 0 and 1 values.

Fixes: 83135ad3 ("clk: stm32f4: Add PLL_I2S & PLL_SAI for STM32F429/469 boards")
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>

* 'for-4.12-ti-clk-cleanups' of https://github.com/t-kristo/linux-pm:
  clk: ti: convert to use proper register definition for all accesses
  clk: ti: dpll44xx: fix clksel register initialization
  clk: ti: gate: export gate_clk_ops locally
  clk: ti: divider: add driver internal API for parsing divider data
  clk: ti: divider: convert TI divider clock to use its own data representation
  clk: ti: mux: convert TI mux clock to use its internal data representation
  clk: ti: drop unnecessary MEMMAP_ADDRESSING flag
  clk: ti: omap4: cleanup unnecessary clock aliases
  clk: ti: enforce const types on string arrays
  clk: ti: move omap2_init_clk_clkdm under TI clock driver
  clk: ti: add clkdm_lookup to the exported functions
  clk: ti: use automatic clock alias generation framework
  clk: ti: add API for creating aliases automatically for simple clock types
  clk: ti: add support for automatic clock alias generation
  clk: ti: remove un-used definitions from public clk_hw_omap struct

The debug APB clock is absent in hi6220 driver, so this patch is to add
support for it.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>

Starting with R-Car H3 ES2.0, the parent of RCLK is selected using MD28.

Add support for that, but retain the old behavior for R-Car H3 ES1.x and
M3-W ES1.0 using a quirk.

Inspired by a patch by Takeshi Kihara in the BSP.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>

The Clock Pulse Generator / Module Standby and Software Reset module in
R-Car H3 ES2.0 differs from ES1.x in the following areas:
  - More core clocks (S0D2, S0D3, S0D6, S0D8, S0D12),
  - Different parent clocks for AUDMAC, EtherAVB, FCP, FDP, IMR,
    SYS-DMAC, VIN, VSPB, VSPI,
  - Removal of modules CSI21, FCPCI, FCPF2, FCPVD3, FCPVI2, FDP1-2,
    USB3-IF1, VSPD3, VSPI2,
  - Addition of modules EHCI3, HS-USB-IF3, USB-DMAC3-0, USB-DMAC3-1.

The goal is twofold:
  1. Support both the ES1.x and ES2.0 SoC revisions in a single binary
     for now,
  2. Make it clear which code supports ES1.x, so it can easily be
     identified and removed later, when production SoCs are deemed
     ubiquitous.

This is achieved by:
  - Updating the clock tables for the latest revision (ES2.0), but not
    removing clocks that only exist on earlier revisions (ES1.x),
  - Detecting the SoC revision at runtime using the new soc_device_match()
    API, and fixing up the clocks tables to match the actual SoC
    revision, by:
      - NULLifying core and module clocks of modules that do not exist,
      - Reparenting module clocks that have a different parent on ES1.x.

Based on R-Car Gen3 Hardware User's Manual rev. 0.53E.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Add all R-Car H3 ES2.0 Clock Pulse Generator Core Clock Outputs, as
listed in Table 8.2a ("List of Clocks [R-Car H3]") of the R-Car Gen3
Hardware User's Manual rev. 0.53E.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

The same SoC may have different clocks and/or module clock parents,
depending on SoC revision.  One option is to use different sets of clock
tables for each SoC revision.  However, if the differences are small, it
is much more space-efficient to have a single set of clock tables, and
fix those up at runtime instead.

Hence provide three helpers:
  - Two helpers to NULLify core and module clocks that do not exist on
    some revisions (NULLified clocks are skipped during the registration
    phase),
  - One helper to reparent module clocks that have different clock
    parents.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Merge tag 'sunxi-clk-fixes-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes

Pull Allwinner clock fixes from Maxime Ripard:

A few fixes for a bunch of clocks on a few SoCs. The most important one is
probably one that fixes the NKMP clock frequency calculation and could end
up with clocking the CPU frequency to out of bounds rates.

* tag 'sunxi-clk-fixes-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  clk: sunxi-ng: fix recalc_rate formula of NKMP clocks
  clk: sunxi-ng: Fix div/mult settings for osc12M on A64
  clk: sunxi-ng: sun6i: Fix enable bit offset for hdmi-ddc module clock
  clk: sunxi: ccu-sun5i needs nkmp
  clk: sunxi-ng: mp: Adjust parent rate for pre-dividers

Add a workaround for errata on R-Car H3 ES1.0, where the PLL0, PLL2, and
PLL4 clock frequencies are off by a factor of two.

Inspired by a patch by Dien Pham in the BSP.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Dien Pham <dien.pham.ry@renesas.com>

Pass the mode pin states from the SoC-specific CPG/MSSR driver to the
R-Car Gen3 CPG driver core, as their state will be needed to make some
core clock configuration decisions.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

For easier comparison with other clock drivers.
No functional changes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

For easier comparison with other clock drivers.
No functional changes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

There's only a single watchdog clock, and it's named "rwdt".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

There's only a single watchdog clock, and it's named "rwdt".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

The parent clock of the Audio DMACs is the "ZS" AXI bus clock, which
maps to S3D1 on R-Car H3 ES1.x.
All module clocks must be sorted by clock ID.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

In commit e66f81bb ("clk: sunxi-ng: Implement factors offsets"), the
final formula of NKMP clocks' recalc_rate is refactored; however, the
refactored formula broke the calculation due to some C language operand
priority problem -- the priority of operand >> is lower than * and /,
makes the formula being parsed as "(parent_rate * n * k) >> (p / m)", but
it should be "(parent_rate * n * k >> p) / m".

Add the pair of parentheses to fix up this issue. This pair of
parentheses used to exist in the old formula.

Fixes: e66f81bb ("clk: sunxi-ng: Implement factors offsets")
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

The mult/div for osc12M was previously backwards (giving a 48M rate
for osc12M). Fix it.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

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>

clksel register pointer should be used for the DPLL-MX autoidle handling.
Currently this is not setup at all. Fix by adding proper handling for the
register.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

These are going to be used by the clkctrl support that will be introduced
later.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

This can be used from the divider itself, and also from the clkctrl
clocks once this is introduced.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Instead of using the generic clock driver data struct, use one internal
for the TI clock driver itself. This allows modifying the register access
parts in subsequent patch.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Instead of using the generic clock driver data struct, use one internal
for the TI clock driver itself. This allows modifying the register access
parts in subsequent patch.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

This has been superceded by the usage of ti_clk_ll_ops for now.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Cleanup any unnecessary DT_CLK() alias entries from the OMAP4 clock file.
Most of these are now handled dynamically by the driver code.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Constant string arrays should use const char * const instead of just
const char *. Change the implementations using these to proper type.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

This is not needed outside the driver, so move it inside it and remove
the prototype from the public header also.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

This will be needed to move some additional clockdomain functionality
under clock driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Generate clock aliases automatically for all TI clock drivers.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

This API generates clock aliases automatically for simple clock types
(fixed-clock, fixed-factor-clock), so that we don't need to add the data
for these statically into tables. Shall be called from the SoC specific
clock init.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Large portions of the OMAP framework still depend on the support of
having clock aliases in place, so add support functions for generating
these automatically.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

Clksel support has been deprecated a while back, so remove these from
the struct also.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

The shared uart-pll is on boot a child of the apll that can get changed
by cpu frequency scaling. So move it away to the more stable gpll to
make sure the uart doesn't break on cpu frequency changes.

This turned up during the 4.11 merge-window when commit
6a171b29 ("serial: 8250_dw: Allow hardware flow control to be used")
added general termios enablement making the uart on rk3036 change
frequency and thus making it susceptible for the frequency scaling issue.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

The mux_pll_src_apll_dpll_gpll_usb480m_p parent list was missing a ","
between the 3rd and 4th parent names, making them fall together and thus
lookups fail. Fix that.

Fixes: 5190c08b ("clk: rockchip: add clock controller for rk3036")
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

Some drivers use sprintf to build clk connection id names but the clk
core will save those strings and occasionally print them back. Duplicate
the con_id strings instead of fixing all the users.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

It turns out that in the CP110 HW block present in Marvell Armada
7K/8K SoCs, gatable clock n°18 not only controls SD/MMC, but also the
GOP block. This commit updates the Device Tree binding for this piece
of hardware accordingly.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

Add the IMR[0-1] clocks to the R8A7796 CPG/MSSR driver.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
[geert: Correct parent clocks]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Add the IMR[0-3] clocks to the R8A7795 CPG/MSSR driver.

Based on the original (and large) patch by Konstantin Kozhevnikov
<Konstantin.Kozhevnikov@cogentembedded.com>.
Signed-off-by: Konstantin Kozhevnikov <Konstantin.Kozhevnikov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>