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    Subject[PATCH v3 04/34] clk: omap2: change omap2_round_to_table_rate return logic
    Date
    This patch updates the round_rate() logic here to return zero instead of a
    negative number on error.

    In conjunction with higher-level changes associated with acting on the
    return value of clk_ops->round_rate() it is then possible to have
    clk_ops->round_rate() return values from 1 Hz to ULONG_MAX Hz instead of
    the current limitation of 1 Hz to LONG_MAX Hz.

    Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
    Cc: Tony Lindgren <tony@atomide.com>
    Cc: Russell King <linux@armlinux.org.uk>
    Cc: Michael Turquette <mturquette@baylibre.com>
    Cc: Stephen Boyd <sboyd@codeaurora.org>
    Cc: linux-clk@vger.kernel.org
    Cc: linux-omap@vger.kernel.org
    Cc: linux-arm-kernel@lists.infradead.org
    Cc: linux-kernel@vger.kernel.org
    ---
    arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
    index e024600..ce3a33f 100644
    --- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
    +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
    @@ -75,9 +75,9 @@ unsigned long omap2_round_to_table_rate(struct clk_hw *hw, unsigned long rate,
    unsigned long *parent_rate)
    {
    const struct prcm_config *ptr;
    - long highest_rate;
    + unsigned long highest_rate;

    - highest_rate = -EINVAL;
    + highest_rate = 0;

    for (ptr = rate_table; ptr->mpu_speed; ptr++) {
    if (!(ptr->flags & cpu_mask))
    --
    2.7.4
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